Belltown Pizza, the hip bar/pizza joint favorited by a wide variety of Belltowners has Trivia Night on Mondays starting at 7pm. I don't know if there are any prizes involved, but I would certainly hope so.
If you've never eaten at Belltown Pizza you should definitely make a point of doing so. They have excellent salads in addition to pizza and of course a full bar. Since they're open until 2am, they serve as a perfect late night snack.
