If A can complete a work in 20 days and B can complete it in 30 days, how long will it take for A to finish the work alone after working with B for 5 days?
In a family of five members A, B, C, D, and E, A is a doctor and is married to B. C is the sister of A and is a teacher. D is the father of E and is a lawyer. Who is the mother of E?
In a family, there are three children: X, Y, and Z. X is the eldest and is a musician. Y is a painter and is younger than X but older than Z. What is Z's profession?