In a family, there are three children: X, Y, and Z. X is the brother of Y, and Y is the sister of Z. If Z is a doctor, what is X's profession if he is not a doctor?
A family consists of a father, a mother, and three children: P, Q, and R. P is the eldest and is studying medicine, Q is studying law, and R is the youngest. If the mother is a lawyer, who is the father?
In a family of five members A, B, C, D, and E, A is a teacher, B is a doctor, C is a lawyer, D is the mother of E, and E is a student. Who among them is the father?
In a family, there are three children: X, Y, and Z. X is the eldest and is a painter. Y is a musician and is younger than X but older than Z. What is Z's profession?
Seven friends, W, X, Y, Z, A, B, and C, attended a party. W arrived before X but after Y. Z arrived before A and after B. C arrived last. What is the order of arrival?