A, B, C, D, and E are five different colored balls: Red, Blue, Green, Yellow, and Black. The following conditions are given: The Red ball is not next to the Blue ball. The Green ball is next to the Yellow ball. The Black ball is not next to the Red ball. Which ball is next to the Yellow ball?

D. GREEN

Five students: P, Q, R, S, and T are participating in a competition. The following conditions are given: P scored more than Q but less than R. S scored less than T. R did not score the highest. Who scored the highest?

D. T

In a race, five runners: 1, 2, 3, 4, and 5 finished in the following order: Runner 1 finished before Runner 2. Runner 3 finished after Runner 4 but before Runner 5. Which runner finished last?

D. 5

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 the doctor and is the son of A. D is the daughter of B. E is the grandmother of C. Who is F?

D. C'S MOTHER

Three friends - X, Y, and Z - have different pets: a dog, a cat, and a bird. X does not have a cat. Y has a bird. What pet does Z have?

A. DOG