Find odd in the following

Direction: Select the odd word from the given alternatives.

(A) Car : Road
(B) Ship : Sea
(C) Rocket : Space
(D) Aeroplan : Pilot 

In each of the following questions, certain pairs of words are given, out of which the words in all pairs excepts one, bear a certain common relationship. Choose the pair in which the words are differently related?

Pond is related to Water in the same way as Mountain is related to:

In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

Three of the following four words are alike in a certain way and one is different. Pick the odd word out.

Identify the odd one from the list below.

In the following question, select the odd letters from the given alternatives.