There are six glasses in a row. The first three are full of water, and the next three are empty. By moving only one glass how can you make them alternate between full and empty? Ah! Click here to read the solution. SelectShow> Pour the water from the 2nd glass into the 5th glass 😉 Related Share Brain TeaserFacebookGoogle+TwitterPinterestLinkedIn Related Brain Teaser:The Cassette RecorderJanuary 18, 2018Crack The CodeJanuary 18, 2018The Crime SceneJanuary 18, 2018The ShooterJanuary 18, 2018