Quizzes › Maths

Math Riddles

Number riddles and short maths puzzles to solve in your head, from easy ones to tricky ones.

36 questionsMultiple choiceShort answerEnglish

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The questions

  1. 1

    I am a number. Add 5 to me and you get 12. What number am I?

    Answer: Seven

  2. 2

    There are 5 birds on a fence. 2 fly away. How many birds are left on the fence?

    • 2 birds
    • 3 birds
    • 4 birds
    • 7 birds

    Answer: 3 birds

  3. 3

    I am a number. Take away 3 from me and you get 3. What number am I?

    Answer: Six

  4. 4

    Which is the longest time?

    • 1 hour
    • 45 minutes
    • 50 minutes
    • 55 minutes

    Answer: 1 hour

  5. 5

    I am a number. Double me and you get 10. What number am I?

    Answer: Five

  6. 6

    How many months have 28 days?

    Answer: All 12 of them

  7. 7

    Which is heavier: 1 kilogram of feathers or 1 kilogram of rocks?

    • The feathers
    • The rocks
    • They weigh the same
    • You need a scale to tell

    Answer: They weigh the same

  8. 8

    A farmer has 3 cows and 2 hens. How many legs do the animals have in all?

    Answer: 16 legs

  9. 9

    I am a number between 10 and 20. My two digits are the same. What number am I?

    Answer: Eleven

  10. 10

    A clock shows 3 o'clock. What time will it show in 2 hours?

    • 1 o'clock
    • 4 o'clock
    • 5 o'clock
    • 6 o'clock

    Answer: 5 o'clock

  11. 11

    I am a number. Half of me is 6. What number am I?

    Answer: Twelve

  12. 12

    A farmer has 9 sheep. All but 3 run away. How many sheep are left?

    Answer: Three sheep

  13. 13

    How many wheels do 2 bikes and 1 skateboard have in all?

    • 10 wheels
    • 6 wheels
    • 7 wheels
    • 8 wheels

    Answer: 8 wheels

  14. 14

    If two is company and three is a crowd, what are four and five?

    Answer: Nine

  15. 15

    I am a number. Multiply any number by me and the answer is always me. What number am I?

    Answer: Zero

  16. 16

    What is half of a half?

    • A half
    • A quarter
    • A third
    • A whole

    Answer: A quarter

  17. 17

    I am an even number. I am bigger than 12 and smaller than 15. What number am I?

    Answer: Fourteen

  18. 18

    There are 3 apples. You take away 2. How many apples do YOU have?

    Answer: Two, the ones you took

  19. 19

    It takes 5 minutes to boil 1 egg. How long does it take to boil 3 eggs together in one pot?

    • 10 minutes
    • 15 minutes
    • 5 minutes
    • 8 minutes

    Answer: 5 minutes

  20. 20

    Count the legs: a spider, a hen and a fish. How many legs are there in all?

    Answer: 10 legs

  21. 21

    I am a number. Multiply any number by me and that number stays the same. What number am I?

    Answer: One

  22. 22

    How many days are in 3 weeks?

    Answer: 21 days

  23. 23

    You have 4 quarters of a cake. How much cake is that?

    • 4 cakes
    • A quarter of a cake
    • A whole cake
    • Half a cake

    Answer: A whole cake

  24. 24

    A dad has 4 daughters. Each daughter has 1 brother. How many children does he have?

    Answer: Five children

  25. 25

    What is the biggest two-digit number?

    • 100
    • 90
    • 98
    • 99

    Answer: 99

  26. 26

    A bus has 10 passengers. At a stop, 4 get off and 7 get on. How many passengers are on it now?

    Answer: 13 passengers

  27. 27

    Ben has 2 hands. Each hand holds 2 bags. Each bag has 3 apples. How many apples does Ben have?

    Answer: 12 apples

  28. 28

    Which number looks the same when you turn it upside down?

    • 6
    • 7
    • 8
    • 9

    Answer: 8

  29. 29

    How many sides do 2 squares and 1 triangle have in all?

    Answer: 11 sides

  30. 30

    How many hours are in 2 days?

    Answer: 48 hours

  31. 31

    If 3 children eat 3 cookies in 3 minutes, how long does 1 child take to eat 1 cookie?

    • 1 minute
    • 3 minutes
    • 6 minutes
    • 9 minutes

    Answer: 3 minutes

  32. 32

    When you count from 1 to 20, how many numbers have a 9 in them?

    Answer: Two: 9 and 19

  33. 33

    I am a number. Add 10 to me and you get 25. What number am I?

    Answer: Fifteen

  34. 34

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

    • She is 5
    • She is 6
    • She is 7
    • She is 8

    Answer: She is 7

  35. 35

    A pizza has 10 slices. You eat half of them, then 1 more. How many slices are left?

    Answer: 4 slices

  36. 36

    I am a number. Double me, then add 1, and you get 21. What number am I?

    Answer: Ten