180 Days
Two blondes walk into a bar. They sit down order drinks and start chanting 180 days 180 days.
A couple minutes later two more blondes walk into the bar sit down and order drinks. then they start chanting 180 days 180 days.
The bartender asks whats this 180 days? One blonde says we did a puzzle and the box said 3 years and up and we did it in 180 days.