There was a thread on this recently that I posted on. DS6 is on a team this year and did it last year. It can be great if it is well organized for sure.

http://giftedissues.davidsongifted..../true/Odyssey_of_the_Mind.html#Post89289

Check out links on their websites as to the problems they have to solve.

http://www.odysseyofthemind.com/materials/2011problems.php

Hope that gives you a little more info.