In a family of six members A, B, C, D, E, and F, A is the father of B. C is the mother of B and D. E is the sister of B. F is the brother of D. How is E related to F?
In a family of five members A, B, C, D, and E, A is a doctor, B is a teacher, C is a lawyer, D is A's sibling, and E is the spouse of C. Who among them is not a professional?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions apply: 1) Alice cannot be selected if Bob is selected. 2) Charlie must be selected if David is not selected. 3) Eva can only be selected if Alice is also selected. Which of the following groups can be selected?