Introducing a lady, a man said, "Her mother in the only daughter of my mother- in- law." What is the man to the lady?

In the following question, there are five alternative answers out of which one is correct. Find out the correct answer:

(i) $A*B$ means $A$ is the brother of $B.$

(ii) $A • B$ means $A$ is the daughter of $B.$

(iii) $A ∆ B$ means $A$ is the sister of $B.$

Which one of the following shows the relation that $P$ is the son of $Q$?

In the following question, there are five alternative answers out of which one is correct. Find out the correct answer:

Pointing to a boy, Ramesh said, "His only brother's mother is my father's wife." How is Ramesh related to that boy?

In the following question, there are four alternative answers out of which one is correct. Find out the correct answer:

A, B, C, D, E and F are members of a club. There are two married couples in the group. A is the brother of D's husband. C is the president of All India Working Women's Association. F is a sitarist and is a bachelor. B's wife is not a member of the Club. Four of them belong to the same family. B and F are colleagues in the same organisation.

How is F related to B?