Towers of Hanoi

A simple puzzle game where one has three poles (the towers), one of which has a pile of disks of different sizes ordered smallest on top and largest at the bottom. Player's task is to move the tower to the right pole with simple contraint of not placing larger disk on top of smaller one and obviously not moving more than one disk at a time (no disk may be removed from the poles completely so another can be moved).

This is a trivial puzzle that many may have played as a kid, for adults the difficulty of the puzzle is generally too low as it doesn't require any effort, especially once you know how to solve it.

The game's so simple that you can easily create a mockup of it with pieces of trash paper, either by cutting them to the different sizes or numbering them.