Four friends, Emma, Noah, Olivia, and Liam, are ranked based on their scores in a quiz. Emma scored more than Noah but less than Olivia. Liam scored the least. What is the correct order of their scores from highest to lowest?
In a circular seating arrangement, A is sitting to the immediate right of B. C is sitting opposite D. E is sitting to the immediate left of A. Who is sitting opposite C?
From the following items: X, Y, Z, A, and B, the selection rules are: 1) X and Y cannot be selected together. 2) If A is selected, then B must also be selected. 3) Z can be selected only if Y is not selected. Which of the following selections is valid?