QUIZ: Take our sex quiz and put your carnal knowledge to the test

The truth is in the numbers — especially when it comes to what happens between the sheets. No, we're not talking about size and duration (because, hey, whatever floats your boat is cool with us); we're talking about some sexy, seductive… statistics. Studies and surveys about sex can reveal a lot about how we operate, what we like and how often we're satisfied. So, for the sexual mathletes among us, we've gathered some sex studies with particularly illuminating findings, and we're putting your knowledge to the test.