Don't continue reading if you don't want the answers just yet! It's a fun puzzle, and I tried to get as many as I could.

3 M
???

3 F. IN A Y.
3 feet in a yard?

4 Q. IN A G.
4 quarts in a gallon

5 P. ON A S.
5 points on a star

7 W. OF THE W.
7 wonders of the world

7 D. IN A W.
7 days in a week

8 S. ON A S.S.
???

9 P. IN THE S.S.
9 planets in the solar system

12 S. OF THE Z.
12 signs of the zodiac

12 M. IN A Y.
12 months in a year

16 O. IN A P.
16 ounces in a pound

18 H. ON A G.C.
18 holes on a golf course?

24 H. IN A D.
24 hours in a day

26 L. OF THE A.
26 letters of the alphabet

29 D. IN F. DURING A L.Y.
29 days in February during a leap year

32 D.F. AT WHICH W.F.
32 degrees farenheit at which water freezes

54 C. IN A D. INCLUDING J.
???

60 S. IN A M.
60 seconds in a minute

66 B. IN THE B.
???

100 Y. IN A F.B.F.
100 yards in a football field

200 D. FOR P.G.IN M.
???

365 D. IN A Y.
365 days in a year

1001 A.K
1001 Arabian Knights--can you tell I made this one up?
[This message has been edited by OohTeenyWahine (edited June 07, 2001).]