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, R is the son of P, S is the daughter of Q, and T is the wife of P. Who is the doctor?
Five students - X, Y, Z, W, and V - scored different marks in an exam. X scored more than Y but less than Z. W scored less than V but more than Y. Who scored the highest?