Set up two video screens in the cafeteria attached to separate laptops. The race starts at one page of Wikapedia for both contestants and the challenge is to get to the announced page in the shortest time using only the links on Wikipedia. Test how long it takes someone to get from “Sahara Desert” to “Emperor Penguin”. You can challenge teachers and nerds alike.
In our virtual world, have a competitor share their screen and allow people on their “team” to give hints on where to go next. Time this person and then the challenger shares their screen and attempts to beat the time of the first person.