In a family, there are four members: P, Q, R, and S. P is the father of Q and R. Q is the daughter of P and S. If R is a son, what is S's relationship to R?
In a family, there are three siblings: X, Y, and Z. X is older than Y but younger than Z. Y is a painter, and Z is a doctor. What is X's profession if it is known that all siblings have different professions?
A family has a grandmother, a mother, and two daughters. The grandmother loves gardening, the mother is a nurse, and one daughter is a student. What is the other daughter's likely interest?