Five people are standing in a line: P, Q, R, S, and T. R is to the left of S but to the right of Q. T is not at either end. Who is standing at the rightmost position?
Four friends, A, B, C, and D, have different pets: a dog, a cat, a bird, and a fish. A does not have a dog or a bird. B has a cat. C does not have a fish. What pet does D have?
In a family of six members P, Q, R, S, T, and U, there are two males and four females. P is a teacher and is married to Q. R is the son of P. S is the sister of R. T is the mother of U. Who is U's father?
In a family of six members A, B, C, D, E, and F, there are two males and four females. A is a teacher, B is a doctor, C is the sister of D, D is the father of E, and F is the mother of A. Who is the male member in the family?