Five friends, P, Q, R, S, and T, are seated in a row. P is not at either end. Q is sitting to the left of R. S is sitting at one of the ends. Who is sitting in the middle?
Four friends, A, B, C, and D, have different pets: a dog, a cat, a bird, and a fish. A does not have a cat. B has a bird. C is allergic to cats. Who has the fish?
There are four animals: a dog, a cat, a rabbit, and a turtle. The dog is faster than the cat but slower than the rabbit. The turtle is the slowest. Which animal is the fastest?
A box contains red, blue, and green balls. If the number of red balls is twice the number of blue balls and the number of green balls is three times the number of blue balls, which color has the highest quantity?