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

A. BROTHER

A is the uncle of B. B is the daughter of C. C is the sister of D. How is D related to A?

B. SISTER

If J is the daughter of K and K is the sister of L, how is J related to L?

A. NIECE

If D is the father of E and E is the mother of F, what is D's relation to F?

A. GRANDFATHER

In a coded relationship, if P × Q means P is the mother of Q, P ÷ Q means P is the father of Q, and P + Q means P is the daughter of Q, what is the relationship of R if P × R ÷ Q means P is the mother of R and R is the father of Q?

B. R IS Q'S SON