This would be awesome
Imagine this:
A trivia channel, which is toggle-able. Players can turn it on to get questions. They could answer the questions with /tanswer
The answers would appear in hangman form, with 3 hints given which reveal one letter of the answer (or a % of the word per hint designed to perhaps reveal 2 letters per hint for longer answers)
If you get a trivia question right, you get a single point. You could have either a shop, or GUI to exchange Trivia Points (TP) into items, stocks, or money (Minimum trade-in 1000 TP?)
I would literally sit in-game all day, as much as I could, if there was a trivia game going on like that.