Verbal Reasoning - Mental Ability Questions

In the following question, select the related word pair from the given alternatives.

Shout : Speak : : ? : ?

If signs - and x, and numbers 3 and 15 are interchanged, what is the value of 3+12/6-4x15 is

In the following question, select the related number pair from the given alternatives.

42 : 55 : : ? : ?

In the following question, select the related letter/letters from the given alternatives.

DFG : EGH : : PRS : ?

Select the related word/letters/number from the given alternatives.

Convenient: Inconvenient :: Reveal: ?

In the following question, select the related number from the given alternatives.

5 : 125 : : 7 : ?

Pointing to a photograph, Vipul said, "She is the daughter of my grandfather's only son." How is Vipul related to the girl in the photograph ?

Select the related word/letters/number from the given alternatives.

867 : 21 : : 9164 : ?