DMOZ - Games: Puzzles

Offers printable crossword and sudoku puzzles. Puzzles are offered daily and weekly with an archive. Also offers a crossword dictionary, daily horoscope, and discussion forums.

Logicville

Educational puzzles, brain teasers, mathematical recreations and word games. A resource for anagrams, cryptograms, alphametics, word puzzles, logic problems, doublets, tangrams, chess, and math quizzes.

MyCharades.com

Includes charades, riddles, and enigmas.

The Puppeteer's Cosmic Puzzle

Pictographic puzzle microcosm of old and new playing cards, poems, games and lore. New suits: the zodiac, solar system, evolution, human family, ancient elements, astronomical basis of the calendar and compass.

Puzzle Choice

Crosswords, wordsearches, cryptograms, quizzes, wordplay and other interactive and printable puzzles and games.

Puzzletome

Contests of varying difficulty and types. Also has tutorials with worked examples and practice games. [Registration required]

Tim's World of Puzzles

Information on World Puzzle Championships including links to sample word and logic puzzles.

The Ultimate Puzzle Site

Challenging puzzles and riddles and interactive quizzes and tests.

Variety Games

Shareware software programs available to create custom crossword and word searches.