A group of six people: P, Q, R, S, T, and U have the following selection criteria: 1) P and Q must be selected together. 2) R cannot be selected if S is selected. 3) T must be selected if U is selected. Which of the following combinations meets these criteria?
In a cooking competition, the following dishes are prepared: Soup, Salad, Main Course, and Dessert. The Soup is prepared before the Salad, and the Dessert is prepared after the Main Course. What is the correct sequence of preparation?
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?