If you don’t already frequent Sporcle.com, you should. If you do, get on the User Created page and try some of these quizzes with mines. Here’s one of my favorites:
Can you name the Top 50 HR Hitters of All Time Without Naming One from #51-100?
If you name a hitter with fewer than 398 home runs (and more than 326), you hit a mine and the quiz is over. I keep getting stuck on 37 or 38 of the top 50 before hitting a mine.
I try to keep non-sports-related stuff off this page, but I also recommend the 50 largest US Cities without naming #51-100.