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

What is the 5th letter in the English alphabet?

B. E

Five books are arranged on a shelf: P, Q, R, S, and T. R is to the left of Q but to the right of P. S is to the right of T. Which book is at the extreme right?

D. S

A is the son of B. C is the daughter of B. D is the wife of A. How is C related to D?

A. SISTER-IN-LAW

In the sequence 1, 3, 5, 7, 9, 11, how many times does the number 4 occur?

A. 0