Question

students can see three glasses on the left that are full, and three on the right that are empty. they can only move one glass to make a to make a row of alternately full and empty glasses. which one do they move?

Answer 1

Answer: Middle glass on the left

Explanation: Lift the glass in the middle left that is full and pour it into the glass on the middle right, then replace it to it's original position. You will have full, empty, full, empty, full and empty. There is your alternating row!