In the expression P × Q -T how is T related to P? 

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.
How is C related to E?

Pointing to the woman in the picture, Rajiv said, “Her mother has only one grandchild whose mother is my wife.” How is the woman in the picture related to Rajiv?

A is the uncle of B, who is the daughter of C and C is the daughter-in-law of P. How is A related to P? 

Pointing to a woman in a photograph a man says she is the mother-in-law of the wife of the father of my only son. How is the woman related to man? 

Pointing towards Rita, Sushant said I am the only son of her mother's son. How is Rita related to Sushant? 

If Q is the brother of K. S is sister of K, and T is the sister of S, so let's say K, what is the relation of T? 

Raj introducing a girl that she is the wife of my sister’s father’s only son then how is that girl related to the Raj?