In a group of vehicles: a car, a bicycle, a truck, a motorcycle, and a boat, which vehicle is not primarily land-based?

D. BOAT

A, B, C, D, and E are five students. A is older than B but younger than C. D is younger than E. If C is older than E, who is the youngest?

C. D

Five books are arranged on a shelf. Book A is to the left of Book B, Book C is to the right of Book D, and Book E is to the left of Book A. What is the correct order of the books from left to right?

A. E, A, B, D, C

In a family, there are four members: A, B, C, and D. A is a doctor and is married to B. C is their son and is a lawyer. D is the daughter of A and B. What is the profession of D?

C. NOT SPECIFIED

Five friends, P, Q, R, S, and T are sitting in a row. P is to the left of Q but not next to R. S is sitting next to R. T is sitting at one of the ends. Who is sitting in the middle?

B. Q