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

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

Memory

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How to play Memory

All cards start face down. Tap a card to flip it, then tap a second card. If they match, they stay face up. If they do not, they flip back after a moment and you try again. Find every pair to clear the board. The game tracks how many flips you made and how long it took. Try to clear the next round in fewer flips.

Tips

Flip the same starting card every round, you will memorise that one fast
Group your guesses by area, do not jump around the board
Say the picture out loud when you flip it, sound helps recall
Take a breath before flipping the second card, do not rush

About Memory

Card matching memory games are as old as paper. The classic Pelmanism game, named after a 1900s memory training school, was the first commercial version. The TV show Concentration ran the format for decades. Memory is the workout your brain wants when scrolling feels too dumb but a sudoku feels too hard. Three minutes per round and you can feel the focus muscles wake up.

More logic games

2048: Slide tiles to combine them. Reach 2048 or beyond.
Sudoku mini: A quick 6x6 sudoku you can finish on a coffee break.
Dark room: Turn off every light in the 5x5 grid. Trickier than it looks.
Slide fifteen: The classic 15 puzzle. Slide tiles into order in as few moves as possible.
Bomb sweep: Find every safe square without setting off a bomb.
Mahjong solitaire: Match and remove free tile pairs to clear the pyramid. A calming classic with 144 tiles.

Browse the full arcade →

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