7 Free Trivia Games That'll Expand Your Knowledge of the World ...

Do you think you know everything? Well, now's your chance to prove just how smart you are--and since you're only human, you'll learn some new facts along the way. There's always more to find out about the world, after all. Here are a few free trivia games that'll expand your knowledge:

1. Trivia Crack

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On iTunes: itunes.apple.com
Price: Free

You won't want to put this game down, so get ready to waste a few hours. All you have to do is spin a wheel, which will land on a certain category: entertainment, art, sports, history, science, or geography. The more questions you answer correctly, the closer you'll get to beating the opponent that the app matches you against. But be careful, because if you answer wrong, it's your partner's turn.

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