Find the odd number in the following?

Find the odd word/letters/numbers from the given alternatives. 

Select the option that belongs to the category of words given below.
Cinema, Actor, Director

Find the odd word from the following:

Direction: Select the odd word from the given alternatives.

(A) Polyester
(B) Cotton
(C) Terylene
(D) Nylon

Which of the following combination is not correct: - 

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

Direction: Select the odd word from the given alternatives.

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