In a family of six members P, Q, R, S, T, and U, there are two males and four females. P is a teacher, Q is a doctor, R is the son of P, S is the daughter of Q, and T is the sister of R. Who is U?

B. FEMALE

Five friends, P, Q, R, S, and T, are sitting in a row. P is to the left of Q but not next to R. S is sitting next to T. Who is sitting in the middle?

B. Q

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?

C. CHARLIE

Three friends, X, Y, and Z, have different hobbies: painting, dancing, and singing. X does not dance. Y does not paint. What is Z's hobby?

C. SINGING

A set of animals includes a dog, a cat, a rabbit, and a parrot. The dog is a mammal, the cat is a mammal, the rabbit is a mammal, and the parrot is a bird. Which of the following is true?

C. THE DOG, CAT, AND RABBIT ARE MAMMALS