Blood Relation Test - General Questions

A's brother B is the son of C. D is C's father. E is D's wife. How is A related to E?

Pointing to a man, Neha said, "His only brother is the father of my daughter's father." How is the man related to Neha?

If P is the brother of Q and Q is the sister of R, how is R related to P?

X is the husband of Y. W is the daughter of X. Z is the husband of W. N is the daughter of Z. How is N related to Y?

Pointing to a boy, Meena said, "He is the son of my father's only son." How is the boy related to Meena?