Have you been keeping up with Josh and Chuck and the latest Stuff You Should Know podcasts? See if you can answer the questions correctly in Josh's Ultimate SYSK Quiz II.

Back when he was in college, Josh met a man named Hippie Rob. Over the course of time Josh lost touch with Rob, but has immortalized him as a character on Stuff You Should Know. Think you're a true fan? Test your Hippie Rob knowledge and prove it.

Scooby, Scooby-Doo -- where are you? He's probably chowing down on some Scooby-Snacks with Shaggy and the gang. You loved the Scooby podcast, now let's see what you know about everybody's favorite Great Dane cartoon.

Riots can break out in an instant, if the right trigger hits at the right time. Trained riot control specialists do a lot more than crack skulls. Grab your shield and take this riot quiz -- if you know what's good for you.

Any fan of SYSK knows we love our movies. We brought out the big guns with our episode on exploitation movies, and now it's up to you to see how much information you retained.

If you've ever eaten food, then there's a chance you might have tried Spam. We're not talking about the e-mail version. We're talking canned meat. Take our Spam quiz to see where you rate on canned pork knowledge.