Which of the following combination is not correct: - 

Which is the odd number-pair?

Find out the odd word/letters/number pair/number from the given alternatives.

Select the odd word/ letters/ number/ number pair from the given alternative.
(A) 1728
(B) 4096
(C) 5832
(D) 2746

Find the odd word from the following:

Direction: Select the odd word from the given alternatives.

(A) Larva
(B) Pupa
(C) Caterpillar
(D) Nymph

Direction:  Select the odd word from the given alternatives. 

Three of the following four numbers pairs are alike in a certain way and one is different. Find the odd one out.