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

D. T

In a straight line, P is to the left of Q, and R is to the right of Q. S is sitting between P and R. Who is sitting at the extreme right?

C. R

A, B, C, D, and E are seated in a row. A is to the left of C but to the right of B. D is to the right of E. Who is sitting at the extreme left?

D. E

In a circular seating arrangement, A is sitting to the immediate right of B, and C is sitting to the immediate left of D. If E is sitting between A and C, who is sitting directly opposite to B?

B. D

In a circular seating arrangement, A is sitting to the immediate left of B, and C is sitting to the immediate right of B. If D is sitting opposite A, who is sitting to the immediate right of C?

D. D