Only Genius Minds Solve 20/25: Logic Puzzles Quiz

Only Genius Minds Solve 20/25: Logic Puzzles Quiz: questions and answers

Try to answer first, then tap a question to see the answer.

1. All roses are flowers and all flowers need water. Do roses need water? Only red roses · Yes · No

   Yes

2. Which number is the odd one out: 2, 4, 6, 9, 10? 2 · 10 · 9

   9

3. What comes next: A, C, E, G, ...? J · I · H

   I – Skip one letter each time!

4. Double a number and add 6 to get 20. What is the number? 10 · 13 · 7

   7

5. Sara is taller than Tom. Tom is taller than Max. Who is the shortest? Sara · Max · Tom

   Max

6. What comes next: 3, 6, 12, 24, ...? 36 · 30 · 48

   48

7. If today is Wednesday, what day is it in 10 days? Sunday · Saturday · Friday

   Saturday

8. Which one doesn't belong: apple, banana, carrot, grape? Apple · Grape · Carrot

   Carrot

9. A train leaves at 3:00 pm and takes 2 h 45 min. When does it arrive? 6:45 pm · 5:45 pm · 5:15 pm

   5:45 pm

10. What comes next: 1, 3, 6, 10, 15, ...? 20 · 18 · 21

    21

11. A farmer must cross a river with a wolf, a goat and a cabbage. What first? The cabbage · The goat · The wolf

    The goat – The wolf won't eat the cabbage, so the goat goes first and returns later!

12. What is the missing number: 2, 6, 12, 20, 30, ...? 40 · 36 · 42

    42

13. If A = 1, B = 2 and C = 3, what do C, A and B add up to? 12 · 6 · 8

    6

14. How many squares of any size are in a 2 by 2 grid? 4 · 6 · 5

    5

15. What comes next: 1, 2, 4, 7, 11, ...? 18 · 16 · 15

    16

16. A is B's sister, and B is C's mother. What is A to C? Grandmother · Mother · Aunt

    Aunt

17. A fair coin lands heads 3 times. What's the chance the 4th flip is heads? 50% · 25% · Higher

    50%

18. 8 identical balls, one is heavier. Fewest scale weighings to find it? 2 · 3 · 4

    2

19. A father is 4 times his son's age. In 20 years he'll be twice as old. Son's age now? 8 · 10 · 5

    10 – The son is 10 and the father 40, then 30 and 60!

20. A cube is painted red and cut into 27 small cubes. How many have 3 red faces? 8 · 12 · 6

    8 – Only the 8 corner cubes!

21. What comes next: J, A, S, O, N, ...? D · J · M

    D

22. It is 4 PM now. What time will it be in 100 hours? 10 PM · 8 PM · 4 PM

    8 PM

23. Trains 300 km apart close in at 150 km/h. A 150 km/h bird shuttles between. How far? 300 km · 450 km · 600 km

    300 km – They meet after 2 hours, so the bird flies 2 times 150 km!

24. 10 people each shake hands once with every other person. How many handshakes? 45 · 90 · 100

    45

25. In 12 hours, how many times do a clock's hour and minute hands overlap? 10 · 11 · 12

    11 – They overlap 11 times, not 12!

26. What question can you never answer yes to? Are you asleep? · Is it Monday? · Are you hungry?

    Are you asleep?