In a family of six members A, B, C, D, E, and F, there are two married couples. A is a teacher and is married to B. C is a doctor and is married to D. E is the son of A. Who is the daughter of C?
Five people P, Q, R, S, and T are sitting in a line. P is to the left of Q but to the right of R. S is to the right of T. Who is sitting at the extreme left?