Free online and printable Crossword and Sudoku puzzles. Puzzles are offered daily and weekly with an archive. Also offers online crossword dictionary, daily horoscopes, and discussion forum.

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.

Includes charades, riddles, and enigmas.

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.

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

Original trivia, logic, visual and word puzzles.

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

Printable puzzles and other diversions to help substitute teachers involve their temporary students in mind stretching activities.

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