2. Syllogism: "All A's are B's, no B's are C's". So no A is C?

3. Marc is 6 years old, his sister is half his age. When Marc is 50, how old will his sister be?

4. What is the next number in this sequence: 2, 6, 18, 54, ...?

5. If you rotate a wheel 360 degrees, its position is?

6. If 5 machines produce 5 objects in 5 minutes. How long does 100 machines take for 100 objects?

7. How much is 20 - 8?

8. Day or night, when is it darker?

9. What number is missing: 4, 9, 19, 39, ...?

10. A number multiplied by 3 then increased by 5 gives 20. The number is ?

11. Suite : 2, 6, 12, 20, 30, ... ?

12. If 3 workers build a wall in 6 days, 1 worker takes?

13. A watch advances 5 minutes per hour. After 2 hours, how much progress has she made?

14. Logical sequence: 81, 64, 49, 36, ...?

15. How many sides does a triangle have?

16. Suite : 2, 3, 5, 8, 12, ... ?

17. What number is missing: 5, 7, 11, 19, 35, ...?

18. What complete picture ★, ●, ★, ●, ...?

19. Suite : 1, 2, 4, 7, 11, 16, 22, ... ?

20. If 4 painters paint 4 houses in 4 days, 8 painters paint?

21. If 3x = 12, then x = ?

22. Suite : 2, 3, 5, 7, 11, 13, ... ?

23. The opposite of hot is...?

24. Suite : 1, 3, 6, 10, 15, 21, ... ?

25. If (x+1)² = 9, then x = ?

26. The combination C(5,2) = ?

27. Repeat these numbers backwards mentally: 8 - 3 - 5 - 1.

28. How many small cubes of 1cm side can be put in a large cube of 3cm?

29. What is the probability of rolling two dice?

30. Suite : 3, 6, 9, 12, ... ?

31. If f(x) = 2x² - 3, then f(3) = ?

32. Find the intruder among these countries: France, Germany, Spain, Japan.

33. If 1/2 + 1/3 = ?, the answer is

34. How much is 7 × 2?

35. If all carons are blue and this object is a caron, what do we know for sure?

36. Sequence: 2, 4, 6, 8, ... ?

37. Memorize: Blue, Green, Yellow, Black, White. What was the 4th color?

38. If we unfold a perfect cube, how many faces do we get flat?

39. Logical sequence: 5, 10, 15, 20, ...?

40. How many sides does a square have?

41. What color is the sky in good weather?

42. Logical sequence: 1, 4, 9, 16, ...?

43. If 5 + 7 = 12, then 7 + 9 = ?

44. If the word "DOG" is coded "DJIFO", how to code "CAT"?

45. If a train travels 300km in 2 hours, its average speed is?