Verbal Reasoning - Mental Ability Questions

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

A is D's brother. D is the son of Mrs. C. B is Mrs. C's father. How is A related to B?

In the following question, select the related letter pair from the given alternatives.PIR : OHQ : : ? : ?

If 4 * 5 % 3 = 8000 and 2 * 3 % 2 = 36, then 4 * 3 % 3 = ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
C A E, F D H, I G K, ?

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

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

6, 18, 54, ? , 486, 1458

Ram said , "Sita is my paternal great grandfather's only son's only daughter-in-law". How is Sita related to Ram?