In a family, there are four members: P, Q, R, and S. P is the grandfather of R. Q is the daughter of P. S is the son of Q. What is the relationship between R and S?
In a family, T is the mother of U and V. U is married to W, and they have a daughter X. If V is the uncle of X, what is the relationship between T and W?
A family consists of a mother, father, and two children. The mother is a lawyer, the father is a chef, and one child is a musician. What is the profession of the other child?
In a family of four members A, B, C, and D, A is a doctor, B is a teacher, and C is neither a doctor nor a teacher. If D is the father of A, who is the mother?