Draw a line swiftly to separate 6 (or 8 or 10) balls into 2 groups that contain the same number of balls. That is all you have to do. Just do it swiftly.
Draw a line swiftly to separate 6 (or 8 or 10) balls into 2 groups that contain the same number of balls. That is all you have to do. Just do it swiftly.