Sailu's mother is the daughter of Kalyan's sister. How is Kalyan's mother related to Sailu's mother?

A is B’s daughter; B is C’s mother D is C’s brother. What is the relation of D with A?

If A is the mother of B. C is the son A, D is the brother of E, E is the daughter of B. Who is the grandmother other of D?

Deepak said to Nitin, " That boy playing football is the younger of the two brothers of the daughter of my father's wife. " How is the boy playing football related to Deepak? 

Pointing to a girl in a photograph, Sunita said, "She is the mother of Renu, whose father is my son". How is she(Sunita) related to that girl?

If A + B means A is the brother of B; A - B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M?

M is the son of N. O is the father of N. P is the father of M. How is N related to P?