★Ketchup was once sold as medicine in the 1830s.★There's a species of jellyfish that is immortal.★Snakes can help predict earthquakes.★Saturn would float if you could find an ocean big enough.★Horses physically cannot vomit.★Voice actors for Mickey and Minnie Mouse got married in real life.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Sea otters hold hands while sleeping so they don't drift apart.★It takes about eight minutes for sunlight to reach Earth.★Hot water freezes faster than cold water. This is called the Mpemba effect.★A shrimp's heart is located in its head.★Goldfish can recognize human faces.★Octopuses can taste with their arms.★Cotton candy was co-invented by a dentist.★A lion's roar can be heard from up to 5 miles away.★Bees can recognize individual human faces.★29th May is officially Put a Pillow on Your Fridge Day.★A group of frogs is called an army.★Antarctica is the only continent without native reptiles or snakes.★A crocodile can't stick its tongue out.★A mosquito has 47 teeth.★Avocados are toxic to most animals except humans.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★A snail can have up to 25,000 teeth on its tongue.★There is a village in Norway called 'Hell' that freezes over every winter.★Vincent van Gogh only sold one painting during his lifetime.★Google processes more than 8.5 billion searches every single day.★You can hear a blue whale's heartbeat from more than two miles away.★The Great Wall of China is not visible from space with the naked eye.★A day on Venus is longer than a year on Venus.★A cloud can weigh more than a million pounds.★Ostriches can run faster than horses.★The Mona Lisa has no eyebrows or eyelashes.★Cows have regional accents, they moo differently in different areas.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★There are more stars in the universe than grains of sand on every beach on Earth.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Starfish can regenerate their lost limbs.★The longest hiccuping spree lasted 68 years.★A bolt of lightning is five times hotter than the surface of the sun.★Nintendo was founded in 1889 as a playing card company.★The Eiffel Tower can grow up to 6 inches taller during summer.★In Switzerland it is illegal to own just one guinea pig.★Wombat poop is cube-shaped.★A rhinoceros' horn is made of keratin, the same stuff as hair.★The French language has 13 different words for 'kiss'.★The Statue of Liberty was originally intended to be a lighthouse.★Pineapples take about two years to grow.★A snail can sleep for three years straight.★Crows can recognize human faces and hold grudges for years.★Pigeons can recognize themselves in a mirror.★The dot over the letter 'i' is called a tittle.★Tigers have striped skin, not just striped fur.★There are more possible iterations of a game of chess than atoms in the observable universe.★Hippos can't actually swim, they walk along the riverbed.★Cherophobia is an irrational fear of fun or happiness.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★More than half of all people alive today have never made a phone call.★Cats can't taste sweetness.★A hippo's sweat is pink.★An octopus has nine brains.★Dragonflies have been around for about 300 million years.★Pigs can't look up at the sky without rolling over.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A newborn panda is smaller than a mouse.★The average person spends six months of their life waiting for red lights to turn green.★Chewing gum while you chop onions helps keep you from crying.★Octopuses have three hearts and blue blood.★Dolphins have names for each other.★The smell of freshly cut grass is actually a plant distress signal.★A group of porcupines is called a prickle.★A group of jellyfish is called a smack.★Humans blink about 15 to 20 times per minute.★A day on Mercury lasts 59 Earth days.★Humans share 60% of their DNA with bananas.★A group of flamingos is called a 'flamboyance'.★A group of crows mobbing a predator is literally called a 'murder patrol'.★The human brain uses about 20% of the body's total energy.★Most 'silver' spoons are actually made of stainless steel.★Bubble wrap was originally invented as wallpaper.★A hummingbird's heart can beat up to 1,260 times per minute.★Polar bears have black skin under their white fur.★It is physically impossible to hum while holding your nose.★Sharks existed on Earth before trees did.★Banging your head against a wall for one hour burns 150 calories.★If you lift a kangaroo's tail off the ground it can't hop.★Koalas have fingerprints nearly identical to humans.★There are more than 1,000 chemicals in a cup of coffee.★The Hawaiian alphabet has only 13 letters.★We have mapped more of Mars than of our own ocean floor.★Peanuts aren't nuts, they are legumes.★Ancient Egyptians slept on stone pillows.★Sloths only poop about once a week.★The world's oldest known recipe is for beer.★A group of owls is called a parliament.★Cashews grow on the outside of a fruit, not inside a shell.★Rats laugh when tickled.★7% of American adults believe that chocolate milk comes from brown cows.★Bananas are berries, but strawberries are not.★A group of ferrets is called a business.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★Cows have best friends and get stressed when separated.★A 'jiffy' is one trillionth of a second in physics.★Sea cucumbers breathe through their butts.★A flock of crows is known as a murder.★The average person walks the equivalent of three times around the world in a lifetime.★A 'moment' was medieval unit of time equal to 90 seconds.★The first oranges weren't orange, they were green.★Barbie's full name is Barbara Millicent Roberts.★A jiffy is an actual unit of time: 1/100th of a second.★Your tongue print is as unique as your fingerprint.★A day on Jupiter lasts only about 10 hours.★A blue whale's heart is roughly the size of a small car.★The first item ever sold on eBay was a broken laser pointer.★The Dutch were once the tallest people in the world.★The longest recorded flight of a chicken lasted 13 seconds.★Pteronophobia is the fear of being tickled by feathers.★Your nose can remember 50,000 different scents.★Bananas are curved because they grow towards the sun.★Sloths can hold their breath longer than dolphins can.★A newborn kangaroo is about the size of a jellybean.★The inventor of the Pringles can is buried in one.★Butterflies taste with their feet.★The smell of rain has a name: petrichor.★A group of pandas is called an embarrassment.★The first computer mouse was made of wood.★The moon has moonquakes.★Humans are the only animals that blush.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★Dolphins sleep with one eye open.★A blue whale's tongue can weigh as much as an elephant.★Scotland's national animal is the unicorn.★Elephants are the only mammals that can't jump.★The shortest commercial flight in the world lasts just 57 seconds.

★Ketchup was once sold as medicine in the 1830s.★There's a species of jellyfish that is immortal.★Snakes can help predict earthquakes.★Saturn would float if you could find an ocean big enough.★Horses physically cannot vomit.★Voice actors for Mickey and Minnie Mouse got married in real life.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Sea otters hold hands while sleeping so they don't drift apart.★It takes about eight minutes for sunlight to reach Earth.★Hot water freezes faster than cold water. This is called the Mpemba effect.★A shrimp's heart is located in its head.★Goldfish can recognize human faces.★Octopuses can taste with their arms.★Cotton candy was co-invented by a dentist.★A lion's roar can be heard from up to 5 miles away.★Bees can recognize individual human faces.★29th May is officially Put a Pillow on Your Fridge Day.★A group of frogs is called an army.★Antarctica is the only continent without native reptiles or snakes.★A crocodile can't stick its tongue out.★A mosquito has 47 teeth.★Avocados are toxic to most animals except humans.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★A snail can have up to 25,000 teeth on its tongue.★There is a village in Norway called 'Hell' that freezes over every winter.★Vincent van Gogh only sold one painting during his lifetime.★Google processes more than 8.5 billion searches every single day.★You can hear a blue whale's heartbeat from more than two miles away.★The Great Wall of China is not visible from space with the naked eye.★A day on Venus is longer than a year on Venus.★A cloud can weigh more than a million pounds.★Ostriches can run faster than horses.★The Mona Lisa has no eyebrows or eyelashes.★Cows have regional accents, they moo differently in different areas.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★There are more stars in the universe than grains of sand on every beach on Earth.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Starfish can regenerate their lost limbs.★The longest hiccuping spree lasted 68 years.★A bolt of lightning is five times hotter than the surface of the sun.★Nintendo was founded in 1889 as a playing card company.★The Eiffel Tower can grow up to 6 inches taller during summer.★In Switzerland it is illegal to own just one guinea pig.★Wombat poop is cube-shaped.★A rhinoceros' horn is made of keratin, the same stuff as hair.★The French language has 13 different words for 'kiss'.★The Statue of Liberty was originally intended to be a lighthouse.★Pineapples take about two years to grow.★A snail can sleep for three years straight.★Crows can recognize human faces and hold grudges for years.★Pigeons can recognize themselves in a mirror.★The dot over the letter 'i' is called a tittle.★Tigers have striped skin, not just striped fur.★There are more possible iterations of a game of chess than atoms in the observable universe.★Hippos can't actually swim, they walk along the riverbed.★Cherophobia is an irrational fear of fun or happiness.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★More than half of all people alive today have never made a phone call.★Cats can't taste sweetness.★A hippo's sweat is pink.★An octopus has nine brains.★Dragonflies have been around for about 300 million years.★Pigs can't look up at the sky without rolling over.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A newborn panda is smaller than a mouse.★The average person spends six months of their life waiting for red lights to turn green.★Chewing gum while you chop onions helps keep you from crying.★Octopuses have three hearts and blue blood.★Dolphins have names for each other.★The smell of freshly cut grass is actually a plant distress signal.★A group of porcupines is called a prickle.★A group of jellyfish is called a smack.★Humans blink about 15 to 20 times per minute.★A day on Mercury lasts 59 Earth days.★Humans share 60% of their DNA with bananas.★A group of flamingos is called a 'flamboyance'.★A group of crows mobbing a predator is literally called a 'murder patrol'.★The human brain uses about 20% of the body's total energy.★Most 'silver' spoons are actually made of stainless steel.★Bubble wrap was originally invented as wallpaper.★A hummingbird's heart can beat up to 1,260 times per minute.★Polar bears have black skin under their white fur.★It is physically impossible to hum while holding your nose.★Sharks existed on Earth before trees did.★Banging your head against a wall for one hour burns 150 calories.★If you lift a kangaroo's tail off the ground it can't hop.★Koalas have fingerprints nearly identical to humans.★There are more than 1,000 chemicals in a cup of coffee.★The Hawaiian alphabet has only 13 letters.★We have mapped more of Mars than of our own ocean floor.★Peanuts aren't nuts, they are legumes.★Ancient Egyptians slept on stone pillows.★Sloths only poop about once a week.★The world's oldest known recipe is for beer.★A group of owls is called a parliament.★Cashews grow on the outside of a fruit, not inside a shell.★Rats laugh when tickled.★7% of American adults believe that chocolate milk comes from brown cows.★Bananas are berries, but strawberries are not.★A group of ferrets is called a business.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★Cows have best friends and get stressed when separated.★A 'jiffy' is one trillionth of a second in physics.★Sea cucumbers breathe through their butts.★A flock of crows is known as a murder.★The average person walks the equivalent of three times around the world in a lifetime.★A 'moment' was medieval unit of time equal to 90 seconds.★The first oranges weren't orange, they were green.★Barbie's full name is Barbara Millicent Roberts.★A jiffy is an actual unit of time: 1/100th of a second.★Your tongue print is as unique as your fingerprint.★A day on Jupiter lasts only about 10 hours.★A blue whale's heart is roughly the size of a small car.★The first item ever sold on eBay was a broken laser pointer.★The Dutch were once the tallest people in the world.★The longest recorded flight of a chicken lasted 13 seconds.★Pteronophobia is the fear of being tickled by feathers.★Your nose can remember 50,000 different scents.★Bananas are curved because they grow towards the sun.★Sloths can hold their breath longer than dolphins can.★A newborn kangaroo is about the size of a jellybean.★The inventor of the Pringles can is buried in one.★Butterflies taste with their feet.★The smell of rain has a name: petrichor.★A group of pandas is called an embarrassment.★The first computer mouse was made of wood.★The moon has moonquakes.★Humans are the only animals that blush.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★Dolphins sleep with one eye open.★A blue whale's tongue can weigh as much as an elephant.★Scotland's national animal is the unicorn.★Elephants are the only mammals that can't jump.★The shortest commercial flight in the world lasts just 57 seconds.

Off by a mile

Score

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How to play Off by a mile

Five questions a day, all of them the kind nobody actually knows. How tall is the tallest tree on the planet, how heavy is a grand piano, how many hairs are on one head. Drag the slider to your best guess and lock it in. Scoring is based on how close you land: get within a couple of percent and you take the full hundred points, be out by a factor of ten and you get almost nothing. After the fifth question you see the real numbers, your total for the day and whether your streak survived. Fresh questions at midnight.

Tips

Read the unit first, half the mistakes come from guessing in metres when the answer is in kilometres
Some sliders cover a huge range and move in jumps, so watch the number and not the handle
If you truly have no idea, park it near the middle of the range instead of an extreme
Partial credit is real, being roughly right still scores, so never leave a guess at the default

About Off by a mile

Estimation is a funny skill. Hardly anyone knows how much a blue whale weighs, but most people can land in the right ballpark if they think about it for ten seconds. That gap between "no clue" and "actually not bad" is exactly what makes this kind of guessing fun to argue about in a pub. Off by a mile turns it into a short daily routine: five questions, one slider, a score out of five hundred and a streak that quietly guilts you into coming back. Questions rotate across buildings, animals, space, sport, the human body and everyday objects, so a good day at one topic will not carry you through the week.

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Daily trivia: Ten questions per day across geography, science, history and pop culture. Can you score 10/10?
Fake or fact: Five quick rounds per day. Read two statements and spot the false one.
One minute detective: Read the clues, pick the culprit. A new mystery every day or endless random cases.

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