150+ True or False Questions With Answers (Easy to Impossible)

Here are more than 150 true or false questions with answers, sorted from easy warm-ups to statements that fool almost everyone, and every single answer comes with a one-line explanation of why. That last part matters: a bare “False” teaches nothing, but “False, because a peanut is a legume” is the moment the question becomes worth asking. Use these for trivia nights, classroom warm-ups, icebreakers, family game nights, or as ready-made material for an online quiz.

One quick note on the craft before the list: a true or false round lives or dies on its false statements. The best ones sound exactly like the truths around them. You’ll spot the pattern as you go, and there’s a short section at the end on writing your own, plus the fastest way I know to turn any 20 of these into an auto-graded quiz.

Easy true or false questions

Warm-ups. Almost everyone gets these, which is exactly their job: early wins keep a group playing.

1. The sun rises in the east. True. Earth rotates west to east, so sunrise is always eastward.
2. There are 26 letters in the English alphabet. True. A through Z.
3. Spiders are insects. False. Spiders are arachnids, with eight legs to an insect’s six.
4. A square has four equal sides. True. That’s the definition of a square.
5. Goldfish have a three-second memory. False. Goldfish can remember things for months and can even be trained.
6. Lightning never strikes the same place twice. False. Tall structures like the Empire State Building are struck dozens of times a year.
7. Water boils at 100 degrees Celsius at sea level. True. At higher altitude, it boils at lower temperatures.
8. Humans have five senses, exactly. False. Balance, temperature, and pain are senses too; scientists count well beyond five.
9. A tomato is a fruit. True. Botanically it’s the ripened ovary of a flower, seeds and all.
10. The Great Wall of China is visible from the Moon with the naked eye. False. Astronauts confirm it isn’t; it’s barely visible even from low orbit.
11. Bats are blind. False. All bats can see; many also echolocate.
12. There are seven continents on Earth. True. Africa, Antarctica, Asia, Australia, Europe, North America, South America.
13. An octopus has three hearts. True. Two pump blood to the gills, one to the body.
14. Carrots improve your night vision. False. The claim comes from British WWII propaganda covering for radar.
15. Sound travels faster than light. False. Light is roughly 880,000 times faster; that’s why thunder trails lightning.
16. Honey never spoils. True. Sealed honey from ancient tombs has been found still edible.
17. A group of lions is called a pride. True. Prides are family groups of related lionesses, cubs, and a few males.
18. The human body has 206 bones as an adult. True. Babies start with about 300 that fuse over time.
19. Penguins live at the North Pole. False. Wild penguins live in the Southern Hemisphere; polar bears own the north.
20. Mount Everest is the tallest mountain above sea level. True. About 8,849 meters, and still rising slightly.
21. You lose most of your body heat through your head. False. Heat loss is roughly proportional to exposed area; your head is just usually the uncovered part.
22. A century is 100 years. True. From the Latin centum, one hundred.
23. Dogs sweat by salivating. False. Dogs cool mainly by panting and sweat a little through their paw pads.
24. The Pacific is the largest ocean. True. It’s bigger than all land on Earth combined.
25. Bananas grow on trees. False. The banana plant is a giant herb; its “trunk” is layered leaves.

General knowledge

1. There are 60 minutes in a degree of latitude. True. Each degree splits into 60 arc minutes; one minute of latitude is one nautical mile.
2. A leap year happens every four years without exception. False. Century years must be divisible by 400: 1900 wasn’t a leap year, 2000 was.
3. The word “alphabet” comes from the first two Greek letters. True. Alpha and beta.
4. A dozen is 12 and a baker’s dozen is 13. True. The extra loaf protected medieval bakers from short-weight penalties.
5. Olympic gold medals are mostly made of gold. False. They’re mostly silver with about 6 grams of gold plating.
6. The violin has four strings. True. G, D, A, and E.
7. Monopoly’s Boardwalk is the most-landed-on square. False. Illinois Avenue and jail-adjacent squares see far more traffic.
8. A hexagon has six sides. True. From the Greek hex, six.
9. The chess queen can move any number of squares in any straight direction. True. She combines the rook’s and bishop’s moves.
10. Diamonds are the hardest natural material on Earth. True. They top the Mohs hardness scale at 10.
11. Fortune cookies were invented in China. False. They emerged in California, most likely via Japanese immigrant bakers.
12. The Mona Lisa has no eyebrows. True. Whether by fashion or lost restoration, none are visible today.
13. A marathon is exactly 26 miles. False. It’s 26.2 miles (42.195 km), standardized after the 1908 London Olympics.
14. “E” is the most commonly used letter in English. True. It leads virtually every frequency analysis.
15. Peanuts are nuts. False. They’re legumes, growing underground in pods like peas.
16. The saxophone is a brass instrument. False. It’s made of brass but classified as a woodwind because of its reed.
17. Friday the 13th occurs at least once every year. True. Every year has between one and three of them.
18. A googol is 1 followed by 100 zeros. True. The search engine’s name is a misspelling of it.
19. The Nobel Prize categories include mathematics. False. No Nobel for math; the Fields Medal and Abel Prize fill the gap.
20. Ketchup was once sold as medicine. True. In the 1830s, tomato ketchup was marketed as a cure-all in pill form.

Science

1. Humans share about 60% of their DNA with bananas. True. Basic cellular machinery is ancient and shared across life.
2. Water conducts electricity well in its pure form. False. Pure water is a poor conductor; dissolved ions do the conducting.
3. The human body contains enough iron to make a small nail. True. Roughly 3 to 4 grams, mostly in your blood.
4. Sound cannot travel through space. True. No medium, no sound; space explosions are silent.
5. Antibiotics kill viruses. False. Antibiotics work only on bacteria, which is why they don’t treat colds or flu.
6. The speed of light is about 300,000 kilometers per second. True. 299,792 km/s in a vacuum, to be precise.
7. Glass is a slow-flowing liquid, which is why old windows are thicker at the bottom. False. Glass is an amorphous solid; old panes were simply made unevenly.
8. Venus is the hottest planet in the solar system. True. Its runaway greenhouse atmosphere beats even closer-to-the-sun Mercury.
9. Human blood is blue inside the body until it touches oxygen. False. Blood is always red; veins just look bluish through skin.
10. An adult human’s small intestine is about 6 meters long. True. Around 20 feet, several times your height.
11. Electrons are larger than atoms. False. Electrons are subatomic particles, thousands of times lighter than the smallest atom.
12. Hot water can freeze faster than cold water under some conditions. True. The Mpemba effect, still being studied and argued about.
13. The human brain uses about 20% of the body’s energy. True. Remarkable for 2% of body weight.
14. DNA stands for deoxyribonucleic acid. True. The double helix molecule of heredity.
15. Mercury is the only metal that is liquid at room temperature. True. Gallium melts in your hand, but only above room temperature.
16. A bolt of lightning is hotter than the surface of the sun. True. Around 30,000 K versus the sun’s 5,800 K surface.
17. Humans evolved from chimpanzees. False. Humans and chimps share a common ancestor; neither evolved from the other.
18. Oxygen is the most abundant element in the universe. False. Hydrogen is, by a huge margin; oxygen leads in Earth’s crust.
19. Your stomach gets a new lining every few days. True. Constant renewal protects it from its own acid.
20. Seasons are caused by Earth’s distance from the sun. False. They’re caused by Earth’s axial tilt; the north’s winter happens near our closest approach.

History

1. The Great Fire of London happened in 1666. True. It destroyed most of the medieval city inside the walls.
2. Napoleon Bonaparte was extremely short. False. At about 5’7″ he was average for his era; the myth mixes up French and English units.
3. Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid. True. The pyramid predates her by ~2,500 years; Apollo 11 came ~2,000 years after her.
4. The Hundred Years’ War lasted exactly 100 years. False. It ran 116 years, 1337 to 1453.
5. Oxford University is older than the Aztec Empire. True. Teaching at Oxford predates 1100; the Aztec Empire formed in 1428.
6. Vikings wore horned helmets in battle. False. No archaeological evidence; the horns came from 19th-century opera costumes.
7. The Titanic sank on its maiden voyage. True. April 1912, four days into the crossing.
8. The Berlin Wall fell in 1989. True. November 9, 1989.
9. Albert Einstein failed math at school. False. He excelled at math; the story likely grew from a grading-scale mix-up.
10. The shortest war in recorded history lasted under an hour. True. The Anglo-Zanzibar War of 1896 ran roughly 38 to 45 minutes.
11. The first Olympic Games were held in Rome. False. Ancient games began at Olympia, Greece; the first modern games were in Athens, 1896.
12. Abraham Lincoln was the first US president to be assassinated. True. In 1865, at Ford’s Theatre.
13. The Colosseum in Rome could be flooded for mock naval battles. True. Early staged sea fights, before the underground level was built.
14. Marie Curie won Nobel Prizes in two different sciences. True. Physics in 1903 and chemistry in 1911, still unique.
15. The guillotine was last used in France in the 1930s. False. France’s last guillotine execution was in 1977.
16. Christopher Columbus set out to prove the Earth was round. False. Educated Europeans already knew it was round; the dispute was Earth’s size.
17. Genghis Khan’s burial site has never been found. True. Its location remains one of history’s enduring mysteries.
18. Women in the United States gained the nationwide right to vote in 1920. True. The 19th Amendment.
19. The ancient Egyptians built the pyramids using slave labor from Israel. False. Evidence shows paid seasonal laborers built them, housed and fed on site.
20. World War I began in 1914. True. Triggered that June by the assassination of Archduke Franz Ferdinand.

Geography

1. Australia is wider than the Moon. True. About 4,000 km east to west versus the Moon’s 3,475 km diameter.
2. Africa is the largest continent. False. Asia is largest by both area and population; Africa is second.
3. The Nile is generally considered the longest river in the world. True. Roughly 6,650 km, though the Amazon debate never quite dies.
4. Russia spans 11 time zones. True. More than any other country.
5. Canada has the longest coastline of any country. True. Over 200,000 km, thanks to its tens of thousands of islands.
6. The capital of Australia is Sydney. False. It’s Canberra, purpose-built as a compromise between Sydney and Melbourne.
7. There is a country entirely inside Italy besides Vatican City. True. San Marino, one of the world’s oldest republics.
8. The Sahara is the largest desert on Earth. False. Antarctica is the largest desert; the Sahara is the largest hot desert.
9. Istanbul sits on two continents. True. The Bosphorus splits it between Europe and Asia.
10. The Dead Sea is the lowest land point on Earth. True. Its shores sit about 430 meters below sea level.
11. Greenland is larger than South America on a globe. False. Map projections inflate it; South America is roughly eight times bigger.
12. Alaska is both the westernmost and easternmost US state. True. The Aleutian Islands cross the 180° meridian.
13. The Amazon River has no permanent bridges across its main stem. True. It runs through areas where bridging has never been practical.
14. Africa contains more countries than any other continent. True. 54 recognized states.
15. Iceland is covered mostly in ice. False. Only about 10% is glaciated; its neighbor Greenland is the icy one.
16. Two countries are doubly landlocked (surrounded only by landlocked countries). True. Liechtenstein and Uzbekistan.
17. The Pacific and Atlantic oceans meet at the equator. False. They meet at Cape Horn and the Drake Passage, far to the south.
18. Monaco is smaller than New York’s Central Park. True. About 2.1 km² versus the park’s 3.4 km².
19. The Andes are the longest mountain range on land. True. About 7,000 km along South America’s western edge.
20. More than half of the world’s population lives in Asia. True. Roughly 60% of all people.

Animals

1. A blue whale’s heart is about the size of a small car. True. It can weigh around 400 pounds.
2. Sharks are mammals. False. Sharks are fish, breathing through gills.
3. A cockroach can live for about a week without its head. True. It breathes through body spiracles and dies of thirst, not decapitation.
4. Elephants are the only land mammals that can’t jump. True. Their build keeps at least one foot planted at all times.
5. Owls can rotate their heads 360 degrees. False. Impressive, but the limit is about 270 degrees.
6. A shrimp’s heart is located in its head. True. Technically the thorax region, tucked behind the head.
7. Koalas are bears. False. They’re marsupials, closer to wombats than to any bear.
8. Wombats produce cube-shaped droppings. True. The cubes keep their territorial markers from rolling away.
9. Flamingos are naturally pink. False. They’re born gray; carotenoid pigments in their diet turn them pink.
10. A group of crows is called a murder. True. English collective nouns are gloriously dramatic.
11. Sea otters hold hands while sleeping so they don’t drift apart. True. They also wrap themselves in kelp as an anchor.
12. Bulls charge at the color red. False. Cattle are red-green colorblind; it’s the cape’s motion that provokes the charge.
13. The mantis shrimp can strike with the acceleration of a bullet. True. Its club accelerates fast enough to boil a tiny pocket of water.
14. Ostriches bury their heads in the sand when scared. False. They flop flat or run at up to 70 km/h; the myth is ancient PR.
15. Some jellyfish are considered biologically immortal. True. Turritopsis dohrnii can revert to its juvenile stage.
16. Polar bear skin is black. True. Under the translucent fur, the skin is black to absorb heat.
17. Honeybees die after stinging a human. True. The barbed stinger tears free; queens and wasps can sting repeatedly.
18. Dolphins sleep with half their brain awake. True. One hemisphere rests while the other keeps them breathing and watching.
19. Camels store water in their humps. False. Humps store fat; the water economy happens in their blood and kidneys.
20. A snail can sleep for up to three years. True. In harsh conditions, snails enter years-long dormancy.

Food and drink

1. White chocolate contains no cocoa solids. True. It’s cocoa butter, sugar, and milk, hence the endless “is it chocolate” debate.
2. Espresso has more caffeine per cup than drip coffee. False. Per ounce yes, but a full mug of drip carries more total caffeine.
3. Cashews grow attached to the bottom of a fruit. True. Each nut hangs beneath a cashew apple.
4. Strawberries are botanically berries. False. They’re aggregate accessory fruits; bananas and watermelons are true berries.
5. Wasabi served in most restaurants is actually dyed horseradish. True. Real wasabi is expensive and loses punch within minutes of grating.
6. Carrots were originally purple. True. Orange carrots were popularized by Dutch growers in the 1600s.
7. Apples float because they are about 25% air. True. That air is also why bobbing for apples works.
8. Chocolate is toxic to dogs. True. Theobromine, harmless to us in normal doses, is dangerous to them.
9. Pineapples grow on trees. False. Each pineapple grows from a spiky ground plant, one fruit at a time.
10. Rice production feeds more than half the world as a staple. True. It’s the primary staple for billions, mostly in Asia.
11. The fear of cooking is called mageirocophobia. True. From the Greek mageiros, cook.
12. Salt was once used as payment for Roman soldiers, giving us the word “salary.” True. From the Latin salarium, linked to salt money.
13. Lemons contain more sugar than strawberries. True. Gram for gram they do; the acid just shouts louder than the sweetness.
14. Coffee is made from beans. False. Coffee “beans” are the seeds of a cherry-like fruit.
15. Ketchup, mustard, and mayonnaise all predate the year 1900. True. All three were commercially established in the 1800s or earlier.

Technology and modern life

1. The first iPhone was released in 2007. True. Announced in January, on sale in June.
2. QWERTY keyboards were designed to slow typists down. False. The layout was designed to separate common letter pairs and stop typebar jams, which is not quite the same thing.
3. The first computer “bug” was an actual insect. True. A moth pulled from a Harvard Mark II relay in 1947, taped into the logbook.
4. Email is older than the World Wide Web. True. Networked email dates to 1971; the Web arrived in 1989-91.
5. Bluetooth is named after a Viking king. True. Harald “Bluetooth” Gormsson, who united Denmark and Norway; the logo merges his runic initials.
6. More people worldwide have mobile phones than have access to safely managed sanitation. True. A statistic that has held for years, strange as it sounds.
7. Wi-Fi stands for “Wireless Fidelity.” False. It’s a trademarked brand name that officially stands for nothing.
8. The first website is still online today. True. CERN restored info.cern.ch, and you can visit it right now.
9. Nintendo was founded in the 1800s. True. It began in 1889 as a playing card company in Kyoto.
10. A modern smartphone has more computing power than the computers that ran Apollo 11. True. By a factor of millions; the Apollo Guidance Computer ran at about 0.043 MHz.
11. The “@” symbol was invented for email. False. It’s centuries old, used in commerce for “at the rate of”; email borrowed it in 1971.
12. YouTube began as a video dating site. True. “Tune In, Hook Up” pivoted fast when nobody uploaded dating videos.
13. There are more possible games of chess than atoms in the observable universe. True. The Shannon number (~10^120) dwarfs the atom estimate (~10^80).
14. The save icon in most software depicts a device most users under 25 have never used. True. The 3.5-inch floppy disk held 1.44 MB, less than a single photo today.
15. Hashtags were invented by Twitter’s founders. False. A user, Chris Messina, proposed the hashtag in 2007; the platform adopted it later.

How to write your own true or false questions

To write a good true or false question, state a single, checkable fact in one sentence, and make it cleanly true or cleanly false. That’s the core skill, and a few rules carry you the rest of the way:

• One fact per statement. “The Nile is the longest river and flows through Egypt” is two claims; if one is wrong, the question is broken.
• Beware absolutes, then exploit them. Words like “always,” “never,” and “only” are usually false in real life, and seasoned players know it. Use them sparingly, and occasionally attach one to a true statement (see #109) to punish the pattern-guessers. That’s the fun part of writing these.
• Make false statements plausible. The best false statement is a common belief (goldfish memory, Napoleon’s height, bulls and red). Debunking a myth is more satisfying than catching a typo-level error.
• Skip trick negatives. “It is not untrue that…” tests reading comprehension, not knowledge.
• Keep the true/false ratio near half and half, in random order. Any detectable pattern becomes the strategy.
• Write the why. If you can’t attach a one-line explanation, the statement is either too vague or not worth asking.

Turn any of these into an auto-graded quiz

A list is good for reading aloud; a true or false quiz keeps score for you. Pick 15 to 20 statements, paste them into a free quiz maker, and mark the correct answers; each true or false question grades itself, and the explanation lines above slot neatly into the per-question explanation field, so players learn the why the moment they answer. Set it to shuffle question order and you can run the same quiz for multiple groups without the answer order leaking!

Frequently asked questions

What are good true or false questions?

Good true or false questions state one checkable fact, are cleanly true or cleanly false, and carry an interesting explanation. The strongest false statements are widely believed myths, like “bats are blind” or “Napoleon was short,” because the reveal teaches something.

How do you write a true or false question?

Write one declarative sentence containing a single fact, decide its truth cleanly, and attach a one-line why. Avoid double claims, trick negatives, and vague qualifiers, and keep roughly half your statements false so guessing strategies fail.

What percentage would someone get by guessing on true or false questions?

About 50%. Each question is a coin flip for a blind guesser, which is why true or false rounds work best mixed with other question types, in larger sets, or with scoring that rewards streaks and explanations that reward attention.

Are true or false questions good for learning?

Yes, when each answer includes an explanation. The format’s speed lets learners cover many facts quickly, and correcting a confidently held false belief is one of the stickiest learning moments there is. Without explanations, the format tests luck as much as memory.

How many true or false questions should a quiz have?

15 to 20 works well for a standalone round: enough to swamp guessing luck, short enough to stay quick. As part of a mixed quiz, 4 or 5 placed as pace-changers between harder formats keeps energy up.

Do this next

Grab 20 statements from this list (steal the hardest section your group can survive), and either read them aloud tonight or spend ten minutes making the self-grading version: build the quiz free, paste the statements, mark the answers, drop the whys into the explanation fields, and share the link. The explanations do the teaching; you just get to enjoy the arguments.