On this episode, we dive into the weird world of measurements.  Who decided how long a foot should be?  And what exactly is an acre?  We'll size up the answers.  Also, we'll unwrap the sweet history of M&Ms - the candy that melts in your mouth - and sometimes on your keyboard.  Plus, we investigate the phrase that's taking over the internet - "If You Know You Know".  Is it a sly wink to those in the know, or just a way to make the rest of us feel like we missed a meeting?  So join host Rick Peterson as he answers more of the curious questions you've Always Wondered about.