A, B, C, D, and E are seated in a straight line. A is to the left of C but to the right of B. D is not at either end. Who is sitting at the extreme right?
Five tasks P, Q, R, S, and T need to be completed. Task P must be done before Q and R. Task S must be done before T but after Q. What is the correct sequence of tasks?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions are given: 1) Alice cannot sit next to Bob. 2) Charlie must sit next to David. 3) Eva cannot sit at either end. Which of the following arrangements satisfies all conditions?
In a family, there are three generations: Grandfather G, his son S, and his daughter D. S has two children, A and B. If A is a doctor and B is a lawyer, what is D's relationship to A?