Blood Relations Questions

A boy and a girl are playing in a park. The only daughter of the maternal grandfather of the girl, is the sister of the boy's father. How is the boy related to the girl?

Introducing a boy Ankit said," He is the son of daughter of my grandfather's son". How is that boy related to Ankit?

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

Introducing a man, Amar says, "His wife is the only daughter of my maternal grandfather". How is the man related to Amar?

Pointing towards a girl, Rajan said, she is the daughter of my mother's daughter. Then how is the girl related to Rajan?

Select the odd word from the given alternatives.

Introducing a man, a woman said that, "He is the son of my mother's brother's father's son." Then how  is the woman related to the man?

X and Y are brothers. R is the father of Y. T is the sister of S who is maternal uncle of X. How is T related to R?