Riddle Event!

This is just one of the ideas I used to use when I was a GM in a different server, basically you just have to make a riddle, not off the internet because that'd be an easy thing to succeed! But you can make it hard or easy, it depends what prize you want to give them. So if let's say you want to offer them a rare item, like a weapon or some sort, you'd want to make the riddle hard so it's not an easy get, because it would seem like an unfair thing for other player >-< So I hope you get the whole thing c: