In a family, there are three generations. X is the grandfather of Y. Y has two siblings, A and B. A is the daughter of Z, who is married to Y's mother. What is the relationship of Z to X?
A family consists of a father, a mother, and two children. The father is a lawyer, the mother is a teacher, and one child is a student. If the other child is not a student, what could be the profession of the other child?