[Jon Stratis]

Not engineering related, but I just remembered another one we did here at work a few years ago.

First, pull a couple of "leaders" out from the group. You give them the task ahead of time, and they get to determine how to present it to the group, and how to use their time. There is an arbitrary time limit involved.

The setup is simple: Outline a bunch of circles in a straight line on the ground. Split the group in half. Have the halves stand in the circles facing each other - the half on the right faces to the left, the half of the left faces to the right. There should be 1 extra circle between the two groups. The "leaders" are not part of the halves, they can walk around separately.

The task is even easier to explain: The goal is to move everyone on the left to the right, and everyone on the right to the left. You can only move in two ways: Either to step 1 spot forward, if there's an empty spot in front of you, or if there is someone facing you and an empty spot behind them, you can "jump" over them.

This requires the "leaders" to organize and communicate effectively, as well as ensure sufficient time management and brainstorming to find the correct solution.