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

[shifat]

Answer
1a =23
1b =7
1c = 18
Answer
2a = 24
2b = 54
2c = 9
Answer
3 = E(Mary)
Answer 4a = -5
4b = 4