Verbal Reasoning - Mental Ability Questions

Select the missing letter from the given responses?

In a certain code language, "SIGHT" is written as "@?*^!" and "ANT" is written as "#&!". How is "NIGHT" written in that code language?

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 = ?

Select the related word/letters/number from the given alternatives.
MUMBAI: UMBMIA :: GURUGRAM : ?

Pointing towards a boy, a girl says, "He is the only son of my mother's brother". How is the girl related to the boy ?

Which of the following interchanges in signs and numbers will make the given equation correct?
7 x 9 + 5 = 68

What will be the next set of alphabets in the series? AZ, BY, CX, ___

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