In a class of students: John, Lisa, Mark, and Sarah, John scored higher than Lisa but lower than Mark. Sarah scored the lowest. Who scored the highest?
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 fish. B has a pet that is not a bird. C has a pet that is not a cat. What pet does D have?
In a race, there are four competitors: Alex, Brian, Charlie, and Derek. Alex finished before Brian but after Charlie. Derek finished last. Who finished first?
In a class, there are three types of students: A, B, and C. Type A students are good at mathematics, Type B students are good at science, and Type C students are good at literature. If a student is good at science, which type do they belong to?
In a family, there are four members: P, Q, R, and S. P is the father of Q, Q is the mother of R, and S is the sister of Q. What is the relationship of S to R?