Five books are arranged on a shelf: P, Q, R, S, and T. Q is to the left of R but to the right of S. T is at one end. Which book is second from the left?
In a family of five members: P, Q, R, S, and T, there are two males and three females. P is a teacher, Q is a doctor, and R is the mother of S. If T is male, who is the father?
In a circular arrangement, A is sitting to the immediate left of B, and C is sitting to the immediate right of A. If D is sitting opposite to B, who is sitting to the immediate right of C?