Among A, B, C, D and E each having a different weight, D is heavier than A and E, while is lighter than C who is lighter than E. Who among them is the heaviest?

D

1) Among A, B, C, D and E each having a different weight, D is heavier than A and E

So, D > A and E

2) B is lighter than C who is lighter than E

So, E> C>B

3)Combining all the statements together, we get:

D > A and E > C> B

Therefore, 'D' is the heaviest.