Here are some java games.  Check them out.  They could be fun.  Just make sure your quiz studying is done first.

Word Puzzle Wheel: Much like the TV wheel show.

Millionaire Game: Much like the show on TV.  Try it and see what you think.

This one's called ANTARIS REALSPACE.  Click here to try it out.

Try out APOCALYPSE OUTPOST by clicking here.

Try out Realspace 2 - Emperor's Revenge by clicking the size screen you want below (try the large one but if it runs slow try smaller).