On Sarlona
Summary:
Every week, Clayne AKA "The Riddlemaster" picks a place to gather, where he gives out prizes to people who solve his riddles. There's usually a Grand Prize of the evening, something covetous in most cases.
Roleplaying and good sportsmanship are highly recommended, but not necessarily required. (Except for the sportsmanship part; that's required.)
Details found here:
http://forums.ddo.com/showthread.php?t=247213