In a family, A is the father of B, C is the mother of B, and D is the grandfather of B. If A is a pilot and C is a nurse, what is D's profession?

C. UNKNOWN

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?

A. C, A, B, D

In a race, five runners A, B, C, D, and E finish in the following order: A finishes before B but after C. D finishes before E but after B. What is the correct sequence of finishers?

A. C, A, B, D, E

In a cooking competition, five chefs A, B, C, D, and E prepare dishes. A finishes before C but after B. D finishes before E but after C. What is the correct order of finishing?

A. B, A, C, D, E

A, B, C, D, and E are five different colored balls. A is red, B is blue, C is green, D is yellow, and E is not blue or green. Which color is E?

B. YELLOW