In a cooking competition, the following events occurred: Chef X started cooking before Chef Y, Chef Z finished after Chef X, and Chef Y finished before Chef Z. What is the correct sequence of finishing?

A. X, Y, Z

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 after R but before T. What is the correct order of tasks?

A. P, Q, R, S, T

In a family, there are three siblings: X, Y, and Z. X is older than Y but younger than Z. If Z is the oldest, who is the youngest?

B. Y

In a race, A finishes before B, but after C. D finishes after A but before E. What is the order of finishers from first to last?

A. C, A, B, D, E

In a race, five runners P, Q, R, S, and T finished in the following order: R finished before S but after P. Q finished before T. What is the correct sequence of their finishing?

D. P, R, Q, S, T