Senses Challenge

I'm not sure how long Senses Challenge has been around for, but I'm pretty sure I posted it about a year ago. I could go find out and search my archives, but that seems like an awful lot of work, and today is my day of rest (PBTA).

You have probably seen a few of the questions before, but there are 20 questions in total, so the chances of you remembering all 20 are slim-to-none.

The quiz took me 5 minutes to do, a small price to pay for the complete learning experience. I can honestly say that now that I have taken the quiz, I am a better human being for it. I feel more alive, I have a bounce in my step, my girlfriend likes me more, and hair is starting to grow again on my once bald head. I even find that my erections are harder and more stable. It's as if there is nothing that this quiz can't do, I highly recommend it.

I scored 14/20, but I'm interested how the smart crowd will do on it, so please leave your marks in the comment box.