CRPuzzles Logic puzzles by R. L. Whipkey, who has published in Dell magazines. A mix of difficulty levels are offered, with 5 stars being the most challenging. Brain Food Give your mind a work out with this collection of puzzles, ranging from word games to logic problems to riddles. All require thinking power. A new logic puzzle each month.
Successful solvers have a chance to win a t-shirt.
A collection of logic, language and math puzzles with the occasional paradox. Brainteasers Network Lots of brainteasers with quick-look answers. Coffee Break Time Large collection of logic puzzles from Jill Clifford. Print or Java. A good selection of brain teasers and logic puzzles as well as cryptic style puzzles.