Five students: A, B, C, D, and E, scored different marks in a test. A scored more than B but less than C. D scored less than E but more than A. Who scored the highest?

C. C

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 the brother of D. E is the sister of A. F is the mother of D. Who is the father of D?

B. B

Four friends, A, B, C, and D, are sitting in a row. A is not next to B. C is sitting to the right of D. Who is sitting in the middle?

C. C

Four friends - A, B, C, and D - have different pets: a dog, a cat, a bird, and a fish. A does not own a bird. B owns a cat. C does not own a dog. What pet does D own?

D. FISH

Four friends A, B, C, and D are sitting in a row. A is to the left of B but to the right of C. D is not at either end. Who is sitting in the middle?

A. A