Four friends, A, B, C, and D, have different pets: a dog, a cat, a bird, and a fish. A does not have a dog or a bird. B has a cat. C does not have a fish. What pet does D have?
A team of four members is to be formed from the following candidates: P, Q, R, S, and T. The selection criteria are: 1) P and Q cannot be selected together. 2) R must be included if S is included. 3) T can be included only if P is not included. Which of the following combinations meets the selection criteria?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, Alice is taller than Bob but shorter than Charlie. David is shorter than Eva but taller than Bob. Who is the tallest among them?