Among A, B, C, D, E and F, who is the heaviest ?
Statements:
1. A and D are heavier than B, E and F but none of them is the heaviest.
2. A is heavier than D but lighter than C.
Answer: A
From 1, we conclude that since none of A and D is the heaviest and each one of B, E and F is lighter than both A and D, so C is the heaviest.