If you love trivia, games, mental_floss, or almost any combination of those words, we've got the thing for you: the mental_floss trivia game! And for the next 24 hours, we're offering it at 15% off when you enter the word "game" into the coupon code. Oh, and if you're in the mood for even more trivia, our power-blogger Jason English's new Big Fat Lies game just came out today too. Check 'em both out here at the mental_floss store.