A family consists of four members: P, Q, R, and S. P is the father of Q, Q is the sister of R, and S is the mother of R. Who is the father of R?

A. P

There are three boxes: one contains only apples, one contains only oranges, and one contains both. The boxes are labeled incorrectly. If you can only pick one fruit from one box, how can you correctly label all the boxes?

C. PICK FROM THE BOX LABELED BOTH

In a race, five runners - X, Y, Z, W, and V - finished in different positions. X did not finish first or last. Y finished before Z but after W. V finished last. Who finished first?

C. W

In a group of five friends: A, B, C, D, and E, the following conditions apply: A is taller than B but shorter than C. D is shorter than E but taller than A. Who is the tallest among them?

C. C

There are four boxes labeled A, B, C, and D. The following conditions are given: Box A contains more items than Box B. Box C contains fewer items than Box D. Which box has the least items?

B. B