theres 3 blondes are in a bar and they keep shouting "21 days, 21 days, 21 days....." and after awhile the bartender gets kind of irrated and goes up and asked them "why do you keep shouting 21 days?" one blonde replies "because we finshed a puzzle in 21 days!" so the bartender replies "whats that to celebrate for?" and another blonde answers "well the box said 3-5 years"