X is the mother of Y. Y has a brother Z. What is Z's relation to X?

A. SON

If A is the brother of B, and B is the sister of C, what is the relationship of A to C?

A. BROTHER

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

A. SISTER

M is the daughter of N. O is the son of N. How is O related to M?

A. BROTHER

If X × Y means X is the brother of Y, and Y ÷ Z means Y is the daughter of Z, what is the relationship of X to Z?

D. GRANDSON