Most of the questions on Jeopardy aren't very hard at all. If you want harder questions go take a look at Win Ben Stein's money, and even they are easy compared to real challenging quiz bowl questions. The trick is just to know a sh!t load of simple trivia on American presidents, states, capitals, pop culture etc.. If you ever see a category come up that you are familiar with you will know what I'm talking about, most of the questions are actually very easy.