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Logic Puzzles with Answers

Here are 48 logic puzzles with answers, each with a hint, and every answer stays hidden until you tap it.

Good logic puzzles give you every fact you need in the question: no special knowledge, just careful reasoning. This list has 7 easy, 22 medium, and 19 hard riddles for teens, adults, students and anyone who likes to reason things out. 3 of them are from the Quiz Zoomies riddle video, and the rest were written and checked by the Quiz Zoomies team. Try each one before you open the answer, and use the hint if you get stuck.

48 logic puzzles

  1. A rooster lays an egg on the very top of a pointy roof. Which way does the egg roll?

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    It doesn't, roosters don't lay eggs Hint: Think about who lays eggs.

  2. What can you put in a bucket to make it lighter?

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    A hole Hint: Think about what leaks out.

  3. A man walks in the rain with no umbrella and no hat, but not a single hair on his head gets wet. How?

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    He is bald Hint: Look at his head.

  4. Which is heavier, a kilogram of feathers or a kilogram of bricks?

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    Neither, they weigh the same Hint: Read the weight again.

  5. You walk into a dark cabin with one match. Inside there is a candle, an oil lamp and a fireplace. What do you light first?

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    The match Hint: What do you need before anything else?

  6. How can a person go eight days without sleep?

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    By sleeping at night Hint: Nobody said no sleep at all.

  7. Five birds sit on a fence. A dog barks loudly and one bird flies away. How many birds are left on the fence?

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    None, the others flew away too Hint: Birds do not like loud noises.

  8. I am an odd number. Take away one letter and I become even. What number am I?

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    Seven Hint: Spell the number out.

  9. Multiply all the numbers on a phone keypad together. What answer do you get?

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    0 Hint: One of the keys is special.

  10. When I was 6, my sister was half my age. Now I am 40. How old is my sister?

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    37 Hint: The age gap never changes.

  11. How many times can you subtract 5 from 25?

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    Once Hint: After the first time, it is no longer 25.

  12. Divide 30 by half and add 10. What do you get?

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    70 Hint: Dividing by half is not the same as halving.

  13. Which three different positive whole numbers give the same answer when you add them as when you multiply them?

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    1, 2 and 3 Hint: They are the three smallest.

  14. Tom is 4 years old and his brother is 3 times as old. When Tom is 12, how old will his brother be?

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    20 Hint: First find the brother's age today.

  15. I am a number. Add me to myself or multiply me by myself, and you get the same answer. I am not zero. What number am I?

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    2 Hint: Try the small numbers.

  16. It takes 5 minutes to boil one egg. How long does it take to boil 3 eggs together in one pot?

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    5 minutes Hint: They all cook at the same time.

  17. You are running a race and you pass the person in second place. What place are you in now?

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    Second Hint: You took their spot, not first place.

  18. Two mothers and two daughters go fishing. Each one catches one fish, but only three fish are caught in total. How?

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    They are a grandmother, a mother and a daughter Hint: Someone can be a mother and a daughter.

  19. A cowboy rode into town on Friday, stayed for three days, and rode out on Friday. How?

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    His horse is named Friday Hint: What was he riding?

  20. Pat's sister is a doctor, but the doctor has no brothers. How can that be?

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    Pat is a girl Hint: Who said Pat is a boy?

  21. In a race, you pass the person in last place. What place are you in now?

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    You can't pass the last person Hint: Who could be behind the last person?

  22. What is your mother's brother's father to you?

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    Your grandfather Hint: Your mother's brother is your uncle.

  23. A truck driver goes the wrong way down a one-way street and passes a police officer, but gets no ticket. Why?

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    He was walking Hint: Nobody said he was driving.

  24. A drawer has 3 red socks and 3 blue socks. In the dark, how many socks must you take out to be sure you have a matching pair?

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    3 Hint: There are only two colors.

  25. A girl falls off a 20 foot ladder but is not hurt at all. How?

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    She fell off the bottom step Hint: Which step was she on?

  26. If you have me, you want to share me. If you share me, you don't have me anymore. What am I?

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    A secret Hint: Shh!

  27. Name three days in a row without saying Monday, Wednesday or Friday.

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    Yesterday, today and tomorrow Hint: Don't use day names at all.

  28. An electric train is heading north and the wind is blowing west. Which way does the smoke go?

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    There is no smoke, it is an electric train Hint: What powers the train?

  29. Which is correct: the yolk of an egg is white, or the yolk of an egg are white?

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    Neither, the yolk is yellow Hint: What color is a yolk?

  30. A farmer has 17 sheep. All but 9 run away. How many are left?

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    9 Hint: Read the words 'all but' very carefully.

  31. Mary's father has five daughters: Nana, Nene, Nini, Nono. What is the fifth one's name?

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    Mary Hint: The answer is in the first three words.

  32. What can you hold in your right hand, but never in your left hand?

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    Your left elbow Hint: Try it with your own hands.

  33. A brick weighs 1 kilogram plus half a brick. How much does one whole brick weigh?

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    2 kilograms Hint: Half a brick must weigh 1 kilogram.

  34. Two hens lay two eggs in two days. How many eggs does one hen lay in four days?

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    2 Hint: Work out how many eggs one hen lays per day.

  35. A frog is at the bottom of a 10 meter well. Each day it climbs up 3 meters, and each night it slides back 2 meters. On which day does it reach the top?

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    Day 8 Hint: On the last day it does not slide back.

  36. Using only addition, how can you add eight 8s to get 1,000?

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    888 + 88 + 8 + 8 + 8 Hint: Some of the 8s can stick together.

  37. A clock strikes 6 times at 6 o'clock, and it takes 5 seconds from the first strike to the last. How long does it take to strike 12 times at noon?

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    11 seconds Hint: Count the gaps, not the strikes.

  38. I am a three-digit number. My tens digit is 5 more than my ones digit, and my hundreds digit is 8 less than my tens digit. What number am I?

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    194 Hint: The tens digit must be as big as it can be.

  39. Which number, written in English, has all its letters in alphabetical order?

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    Forty Hint: It is between 30 and 50.

  40. If a hen and a half lays an egg and a half in a day and a half, how many eggs does one hen lay in one day?

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    Two thirds of an egg Hint: Fewer hens and fewer days means fewer eggs, twice over.

  41. Seven friends meet, and each one shakes hands with every other friend once. How many handshakes are there?

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    21 Hint: The first friend shakes 6 hands, the next one 5 new hands.

  42. A dad is 30 years older than his son. In 5 years he will be 3 times as old as his son. How old is the son now?

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    10 Hint: Try a few ages for the son.

  43. Sam is 12 years old but has only had 3 birthdays. How is that possible?

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    Sam was born on February 29 Hint: Some dates do not come every year.

  44. A house has four walls, and every one of them faces south. A bear walks past. What color is the bear?

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    White Hint: Where could every wall face south?

  45. A man looks at a photo and says: Brothers and sisters I have none, but that man's father is my father's son. Who is in the photo?

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    His son Hint: My father's son, with no brothers, is me.

  46. You have two US coins that add up to 30 cents. One of them is not a nickel. What are the two coins?

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    A quarter and a nickel Hint: Only one of them is not a nickel.

  47. A woman has 7 children and half of them are boys. How can that be?

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    They are all boys Hint: Half of them can still be boys if more are.

  48. What comes next: 1, 11, 21, 1211, 111221?

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    312211 Hint: Read each number out loud, describing the one before it.

Share a single riddle: every riddle on this page has its own page
  1. A rooster lays an egg on the very top of a pointy roof. Which way does the egg roll?
  2. What can you put in a bucket to make it lighter?
  3. A man walks in the rain with no umbrella and no hat, but not a single hair on his head gets wet. How?
  4. Which is heavier, a kilogram of feathers or a kilogram of bricks?
  5. You walk into a dark cabin with one match. Inside there is a candle, an oil lamp and a fireplace. What do you light first?
  6. How can a person go eight days without sleep?
  7. Five birds sit on a fence. A dog barks loudly and one bird flies away. How many birds are left on the fence?
  8. I am an odd number. Take away one letter and I become even. What number am I?
  9. Multiply all the numbers on a phone keypad together. What answer do you get?
  10. When I was 6, my sister was half my age. Now I am 40. How old is my sister?
  11. How many times can you subtract 5 from 25?
  12. Divide 30 by half and add 10. What do you get?
  13. Which three different positive whole numbers give the same answer when you add them as when you multiply them?
  14. Tom is 4 years old and his brother is 3 times as old. When Tom is 12, how old will his brother be?
  15. I am a number. Add me to myself or multiply me by myself, and you get the same answer. I am not zero. What number am I?
  16. It takes 5 minutes to boil one egg. How long does it take to boil 3 eggs together in one pot?
  17. You are running a race and you pass the person in second place. What place are you in now?
  18. Two mothers and two daughters go fishing. Each one catches one fish, but only three fish are caught in total. How?
  19. A cowboy rode into town on Friday, stayed for three days, and rode out on Friday. How?
  20. Pat's sister is a doctor, but the doctor has no brothers. How can that be?
  21. In a race, you pass the person in last place. What place are you in now?
  22. What is your mother's brother's father to you?
  23. A truck driver goes the wrong way down a one-way street and passes a police officer, but gets no ticket. Why?
  24. A drawer has 3 red socks and 3 blue socks. In the dark, how many socks must you take out to be sure you have a matching pair?
  25. A girl falls off a 20 foot ladder but is not hurt at all. How?
  26. If you have me, you want to share me. If you share me, you don't have me anymore. What am I?
  27. Name three days in a row without saying Monday, Wednesday or Friday.
  28. An electric train is heading north and the wind is blowing west. Which way does the smoke go?
  29. Which is correct: the yolk of an egg is white, or the yolk of an egg are white?
  30. A farmer has 17 sheep. All but 9 run away. How many are left?
  31. Mary's father has five daughters: Nana, Nene, Nini, Nono. What is the fifth one's name?
  32. What can you hold in your right hand, but never in your left hand?
  33. A brick weighs 1 kilogram plus half a brick. How much does one whole brick weigh?
  34. Two hens lay two eggs in two days. How many eggs does one hen lay in four days?
  35. A frog is at the bottom of a 10 meter well. Each day it climbs up 3 meters, and each night it slides back 2 meters. On which day does it reach the top?
  36. Using only addition, how can you add eight 8s to get 1,000?
  37. A clock strikes 6 times at 6 o'clock, and it takes 5 seconds from the first strike to the last. How long does it take to strike 12 times at noon?
  38. I am a three-digit number. My tens digit is 5 more than my ones digit, and my hundreds digit is 8 less than my tens digit. What number am I?
  39. Which number, written in English, has all its letters in alphabetical order?
  40. If a hen and a half lays an egg and a half in a day and a half, how many eggs does one hen lay in one day?
  41. Seven friends meet, and each one shakes hands with every other friend once. How many handshakes are there?
  42. A dad is 30 years older than his son. In 5 years he will be 3 times as old as his son. How old is the son now?
  43. Sam is 12 years old but has only had 3 birthdays. How is that possible?
  44. A house has four walls, and every one of them faces south. A bear walks past. What color is the bear?
  45. A man looks at a photo and says: Brothers and sisters I have none, but that man's father is my father's son. Who is in the photo?
  46. You have two US coins that add up to 30 cents. One of them is not a nickel. What are the two coins?
  47. A woman has 7 children and half of them are boys. How can that be?
  48. What comes next: 1, 11, 21, 1211, 111221?

Frequently asked questions

How many logic puzzles are on this page?

48 logic puzzles (7 easy, 22 medium, and 19 hard), over 1 page. Each has a hint and an answer hidden under a Show answer button, and its own page you can share.

What are some good logic puzzles?

A rooster lays an egg on the very top of a pointy roof. Which way does the egg roll? It doesn't, roosters don't lay eggs. What can you put in a bucket to make it lighter? A hole. A man walks in the rain with no umbrella and no hat, but not a single hair on his head gets wet. How? He is bald.

How do you solve a logic puzzle?

Read the question twice, list what you know for sure, and question every assumption. A man walks in the rain with no umbrella and no hat, but not a single hair gets wet. How? He is bald: the puzzle never said he had hair.

Can I print these riddles?

Yes. Press Print above the list: every answer opens for the printout and the page drops its menus, so you get a clean sheet for a classroom or a party.

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