Five tasks P, Q, R, S, and T need to be completed. Task P must be done before Q but after R. Task S must be completed before T but after Q. What is the correct sequence of tasks?
Four friends, A, B, C, and D, are sitting in a row. A is to the left of B but to the right of C. D is not at either end. What is the correct order from left to right?
Four friends, A, B, C, and D, went to a party at different times. A arrived before B but after C. D arrived after B. What is the correct order of their arrival?
A, B, C, D, and E are five friends who are going to a party. A arrives before B but after C. D arrives before E but after A. What is the correct order of arrival?