In order for us to grow and mature as human beings, we need something to stimulate our minds. For a long time I wondered what my website was missing. I think I've discovered it. People need to be challenged. People WANT to be challenged. And, most importantly, I can present the challenge that can be appreciated by even the greatest of minds.

All you need to do is choose which picture in the group doesn't belong. Please don't get discouraged if you can't determine the correct answer on the first try. That is what learning is all about.