In a family, there are three sons: X, Y, and Z. X is the eldest son and Y is the youngest. Z is the only son who is married. If Z has two daughters, what is the relationship of Y to Z's daughters?
In a family of four members A, B, C, and D, A is a doctor, B is a teacher, C is A's sibling, and D is the parent of A and C. Who among them is the teacher?
A, B, C, D, and E are five members of a family. A is the mother of B and C. D is the father of E and is married to A. If C is a teacher, what is the profession of E?