It's a really worn cliche, but it's true: the more you know the bigger leg you'll have up on all the doofuses that don't know jack. Think about it: how many times have you run into somebody that said something really interesting and backed it up with rock-solid facts and you went, “Whoa, this person is a person who knows a thing or two about waaay more than a thing or two.”
Well, that person probably didn't come by that knowledge or skill by accident. They did what you're about to do: your brain needs exercise like the rest of your body, lest it withers and atrophies (we just used the words “atrophies,” “withers,” and “lest” to show off that we exercise ours). So we have prepared these for you to do some think-ups, know-ups, and brain-presses while you munch on Doritos*.