Introducing Kavi, Veena said, “She is the sister of the son of the wife of my husband”. How is Veena related to Kavi?

E is the sister of B. A is the father of C. B is the son of C. So how is A related to E? 

A prisoner introduced a boy who came to visit him to the jailor as “Brothers and sisters I have none, he is my father’s son’s son”. Who is the boy?

A is the mother of B. B is the sister of C. D is the son of C. E is the brother of D. F is the mother of E. G is the granddaughter of A. H has only two children B and C.
Who is the mother of G?

How is A related to F in the given expression? 

A + B × C ÷ D * E # F 

A and B are brothers. E is the daughter of F. F is the wife of B. What is the relation of E to A? 

Pointing to a man in a photograph woman says “ He is the father of my only daughter in - law ' s father - in - law. " How is man related to women? 

Pointing towards a girl Rama said that she is only child of my uncle’s father’s only sister’s daughter. Then how is Rama related to that girl?