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 selected. 3) T can be included only if P is not selected. Which of the following selections is valid?
Five animals are arranged in a line: a cat, a dog, a rabbit, a horse, and a turtle. The cat is not at either end, the dog is next to the rabbit, and the turtle is at one end. Which animal is in the middle?
In a race, five runners A, B, C, D, and E finished in the following order: A finished before B but after C. D finished before E. What is the correct finishing order?