Question 1
Among Z, U, Y, X, Q, W, the following comparisons are known: Y is smarter when compared with U. U is smarter when compared with Q. Q is smarter when compared with Z. Z is smarter when compared with W. W is smarter when compared with X. Who is the tallest?
Chain of comparisons: Y > U > Q > Z > W > X. Therefore, the tallest is Y.