Answer over 23 and Mensa considers you a genius. Only 2 Mensa geniuses have answered all of them.

01. 26 L of the A (hint: 26 Letters of the Alphabet)
02. 7 D of the W
03. 7 W of the W
04. 12 S of the Z
05. 66 B of the B
06. 52 C in a P (W Js)
07. 13 S in the U S F
08. 18 H on the G C
09. 39 B of the O T
10. 5 T on a F
11. 90 D in a R A
12. 3 BM (S H T R)
13. 32 T in a D F at which W F
14. 15 P in a R T
15. 3 W on a T
16. 100 C in a R
17. 11 P in a F (S)T
18. 12 M in a Y
19. 13 = U F S
20. 8 T on an O
21. 29 D in F
22. 27 B in the N T
23. 365 D in a Y
24. 13 L in a B D
25. 52 W in a Y
26. 9 L of a C
27. 60 M in a H
28. 23 P of C in the H B
29. 64 S on a C B
30. 9 P in S A
31. 6 B to an O in C
32. 1000 Y in a M
33  15 M on a D M C