In a circular arrangement, X is sitting opposite Y. Z is sitting to the immediate right of X. If W is sitting to the immediate left of Y, who is sitting next to Z?
In a group of five friends: Alice, Bob, Charlie, David, and Eva, Alice is taller than Bob but shorter than Charlie. David is shorter than Eva but taller than Bob. Who is the tallest among them?
A box contains red, blue, and green balls. If the number of red balls is twice the number of blue balls and the number of green balls is three times the number of blue balls, which color has the highest quantity?
A team consists of a manager, two developers, and a designer. If the manager must be present, and one developer cannot work with the designer, which of the following combinations is valid?