==> competition/contests/national.puzzle/npc.1993.s <==
1. 6, 10, 11, and 12 are in one group, and everything else is in the other.
2. 20
3. The upper-right segment of the first 8.
4. 6
5. d (ball point pen, analog watch, mattress, pogo stick): springs
6. a (Fire Engine, strawberry, lobster, lips): red
7. h (Icicle, paint, nose, faucet): drip
8. f (piggy bank, basketball, jack o' lantern, drum): hollow
9. g (horseshoe, goal post, stethoscope, fish hook): shaped like letters
10. e (flying bat, Xmas tree ornament, framed picture, trapeze artist): hang
11. b (candle, owl, vampire, pajamas): all associated with night
12. 4, 7, 2, 10, 5, 8, 1, 9, 6, 3
13. 152954
14. LIMA PERU
15. 44
16. 160
17. A
18. Flo Lisa Amy Joyce Kim. 
19. Top: AJKQ, 2nd Row: JKAQ, 3rd Row: KQAJ, 4th Row: JQAK
20. Joan Miro, Paavo Nurmi, Blaise Pascal
21. Top: 1, 8, 4  Middle: 6, 9, 3  Bottom: 2, 7, 5
22. d and g
23. Brenda: 87, Carrie: 85, Dick: 86, Harry: 84, Laura: 88, Tom: 83
24. If you number the columns 1-6 and letter the rows a-f, the first group
    consists of 1a, 2a, 3a, 4a, 1b, 2b, 2c, 3c, 2d.  Other groups are
    similarly shaped, rotated around the center point of the grid.
25. 2, 6, 5
26. Top: R O M  Middle: Q T A   Bottom: U E D S
27. 3 X 58 = 174 = 6 X 29
28. 5 (the number of enclosed areas in the letters of each month name)
29. too hard to describe -- easier than it looked
30. 80
31. 16
32. 4 (ADBECF ADBFCE ADFCBE BFDCAE)
33. 8 (delete 3,5,7,9,12,14,17,18)
34.  CONKP VALEY GSRCW TUIBI LANZS