RE: Puzzle Contest #12 - First to get all the correct answers wins 5 SBD, all attempts will receive an upvote.

Answer 1(a) : 23
1(b) : 7
1(c) : 18

Answer 2 (a) : 24
2(b) : 54
2(c) : 9

Answer 3 : C .John

Answer 4 (a): -5
4(b) : 4