<p>Here are the rules: you can post riddles, comments, and questions, but NO ANSWERS. Let's not ruin it for the rest of us hm? If you're so inclined, google the answer. But that's no fun :P</p>
<p>Only post riddles that have legit answers. I wouldn't want to waste 10 minutes of my life thinking about a riddle with a facepalm answer...</p>
<p>I'll start with one.</p>
<p>You walk into a dark room in which one hundred coins are scattered around on the floor. You are told that ten of them have "heads" face up, and that ninety have "tails" face up. Your mission is to separate the coins into two groups such that the amount of coins showing "heads" are equal in each group. You can not see, feel, smell, taste or hear on which side the coins are. Can you perform the mission in a way that it will always work?</p>