AddleCross is a sort of criss-cross word puzzle scavenger hunt. The
addling part is that the simple clues all refer to kooky factoids
sprinkled on the web page. Also odd is that you actually print out (how
antique) the puzzle and fill it in to solve it. No prizes. And it is
free. Good clean fun, and makes you think.
http://glikglik.blogspot.com/2005/03/glikglik-addlecross-1.html