A family consists of a mother, a father, and three children: P, Q, and R. P is the eldest child and is a doctor. Q is a teacher and is younger than P but older than R. What is R's profession if all children have different professions?
In a family of four members A, B, C, and D, A is a doctor, B is a teacher, C is a lawyer, and D is a student. If A is married to B and they have one child, who is C's sibling?
A family consists of a father, a mother, and three children: X, Y, and Z. X is the eldest child and is a student. Y is a musician and Z is a painter. If the mother is a doctor, what can be inferred about the father's profession?