Question

pointing to a man,a girl said ''he is the only son-in-law of the grandfather of my mother's only daughter.''how is the man related to the girl?

Answer 1

Answer:

husband of the girl because his daughter is she so her husband

Answer 2

Father and girl.

EXPLANATION:  

This is a relationship based question. These kinds of questions may seem confusing but it would be easy if you reduce it from the end. A girl said “my mother’s only daughter” which means that is the girl herself. The girl’s grandfather is her maternal grandfather. The grandfather’s son-in-law is the grandfather’s daughter’s(the girl’s mother’s) husband. That is the father of the girl. It is also mentioned that only son-in-law. Therefore the mother is the only daughter for the grandfather.