If P is the son of Q and Q is the brother of R, what is P's relation to R?

A. NEPHEW

If S is the grandmother of T and T is the son of U, what is U's relation to S?

B. SON

If A is the brother of B and C is the sister of A, how is C related to B?

A. SISTER

J is the daughter of K and L is the son of K. How is L related to J?

A. BROTHER

If D is the daughter of E and E is the sister of F, what is the relationship of D to F?

A. NIECE