Five tasks P, Q, R, S, and T need to be completed. P must be done before Q, R must be done before S, and T must be done after Q. What is the correct sequence of tasks?
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?
There are four animals: a dog, a cat, a rabbit, and a parrot. The dog is not a mammal, the cat is a mammal, the rabbit is a mammal, and the parrot is a bird. Which of the following is true?
In a class, there are three types of students: A, B, and C. Student A is a science major, Student B is an arts major, and Student C is a business major. If Student A is not in the same group as Student C, which statement is true?
Four friends: John, Sarah, Mike, and Lisa, are sitting in a row. John is to the left of Sarah but to the right of Mike. Lisa is sitting at the end of the row. Who is sitting in the middle?