A, B, C, D, and E are five students. The following conditions apply: A is older than B but younger than C. D is older than E but younger than A. Who is the youngest among them?
In a family of six members: P, Q, R, S, T, and U, the following relationships are given: P is the mother of Q. R is the father of S. T is the brother of U. Q is the sister of S. Who is the father of U?
A selection of fruits must meet the following criteria: 1) Apples cannot be selected if Bananas are selected. 2) Oranges must be included if Grapes are included. 3) Cherries can only be selected if Apples are not selected. Which of the following selections is valid?