Analogy Questions

In the following question, select the related letters from the given alternatives.
BPTW : CQUX : : CHNS : ?

In the following question, select the related word from the given alternatives.
Frog : Amphibian : : Lizard : ?

Select the related word/letters/number from the given alternatives.
36 : 25 : : 100 : ?

Select the related word from the given alternatives.
Cotton : White :: Coal : ?

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

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

Select the related word/letters/number from the given alternatives.
BCD : YXW : : FGH : : ?

Select the odd word from the given alternatives.