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

A. GRANDMOTHER

A is the father of B. B is the sister of C. How is C related to A?

C. CHILD

If A × B means A is the daughter of B, A + B means A is the son of B, and A - B means A is the wife of B, what is the relationship of C if A × C + B = true?

B. C IS THE SON OF B

P is the daughter of Q. R is the brother of Q. S is the son of R. How is S related to P?

A. COUSIN

If J is the son of K and K is the sister of L, what is the relationship of J to L?

A. NEPHEW