Verbal Reasoning - Mental Ability Questions

In the following question, select the related letters from the given alternatives.
FS : LY : : IV : ?

Introducing a girl, a boy says, "She is the daughter of my father's only brother­in­law". How is the girl related to the boy?

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

9, 1331, 18, 121, 27, ?

Pointing to a boy in a photograph, Neena said, "He is the son of my grandmother's only daughter". How is Neena related to the boy?

If L denotes 'x', M denotes '÷' , P denotes '+' and Q denotes '-'  then 16P24M8Q6M2L3

If 52 % 32 = 40, 22 % 20 = 4 then what is the value of 15 % 11 = ?

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

111, 107.5, 104, ? , 97, 93.5

A girl introduces a man as the son of her grandfather and the brother of her maternal aunt. How is the man related to the girl?