The first puzzle appeared in 2005 and required residents to anagram the names of slugs to match up with pictures that they were given. Adding to the difficulty was the fact that the pictures were drawn by Aaron and therefore were of fairly poor quality. However despite this difficulty the slugs solved the puzzle in good time.
The Thanksgiving Puzzle for 2006 has 3(?) parts: an acrostic, a crossword, and a word find. It will be available to the public on Nov 18th following Thanksgiving Feed, it can be found at http://web.mit.edu/abader/Public/4e/Thanksgiving_puzzle_2006/Thanksgiving_puzzle.xls
The puzzles are designed to be more fun than difficult and should not take more than a couple hours for several individuals from the hall to solve.