Food for the Brain - an eclectic mix of word puzzles, math puzzles, brain teasers, and riddles.  This page is administered by Doug, the administrator of the The Problem Site.  The puzzles generally require not specialized knowledge (no, you don't need to have a geometry course under your belt!), but may require you to stretch your brain in some different directions.  Currently most of our problems are Word Ladders, Hinky Pinky, and Word Equations.  Enjoy!