WATCH OUR OTHER VIDEOS: Think You're Smart? The Ultimate List25 Trivia Challenge: 25 Signs Youre Smarter Than You Think: Stephen Hawking famously said, People who boast about their IQ are losers.

For as long as intelligence has been studied, we’ve been told that our raw IQ is mostly a genetic hand-me-down. Sure, we've learned how to sharpen the knives we were handed and increase our “effective ...