If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C if A + C × B?

C. C IS THE SON OF A

P is the grandmother of Q. R is the father of Q. How is P related to R?

A. MOTHER

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

A. GRANDFATHER