Verbal Reasoning - Mental Ability Questions

Johnny's father is the brother­in­law of Nisha's only sister. How is Johnny related to Nisha?

In the following question, select the related letters from the given alternatives.
ELQZ : AJOV : : VXTD : ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
25 + 10 ÷ 240 x 16 = ?

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

Choose the odd one from the following:

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

LOP, MPQ, NQR, ORS, ?

Introducing a woman, a boy says, "She is the wife of my grandfather's son". How is the woman related to the boy?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

50 + 5 - 700 x 28 = ?