This page broadens the arena of argumentation in natural language to address the nature and contexts of good reasoning. Includes everything from formal logic and rhetoric resources to links about reasoning in specific contexts.
Jeff Scanlan's Bottle Magic, also known as 'Impossible bottles', are decks of cards and other objects that have been put in through the neck of ordinary glass bottles.
Your source for all your gaming needs. Not just for the items service, but for every gamer of every console. Latest news in the gaming world, community, latest reviews and more.
Whitedog Games and Accessories offers a selection of gadgets gizmos and add-ons for just about any gaming machines including PS2, Xbox and Gamecube.
Play Minesweeper with Nonograms: Nonosweeper is a game of speed and skill based on two different puzzle games. The interface has been designed to mimic that of the popular Windows game Minesweeper, but the game itself is actually a variation on Nonograms.
Associate Professor of Computer Science, Rockhurst University, Kansas City, MO.
Yariv's World of CryptoPics offers its own variation of Nonograms (PAP), downloadable software with a library of extra puzzles to play with it, and a page of CryptoPic and other puzzle links.
Math puzzles and problems collected by Ken Duisenberg.
MagicCube4D is a fully functional four-dimensional analog of Rubik's cube. The 4D face is composed of a 3 dimensional block of 3D stickers. The 4D cube has more potential positions than the total number of atoms in the universe.
When you wanna reach out to your pals/ kids/ grandkids in a wacky way n dunno how to... jus' try sending these cool tricks n games to them... they'll really love solving them all!
PuzzleDepot.Com challenges your brain with free puzzles, Shockwave and Flash games, crosswords, logic games, IQ tests, trivia games and contests for prizes.
Wood puzzles by Andy Snowie. Designer of the MindBlock cube and checkerboard puzzle and other puzzles from basic geometric shapes.
Specializes in wire disentanglement puzzles puzzles.ca has been making and selling puzzles since 1979. This website offer a wide variety and degree of difficulty in puzzles where the goal is to separate two interlocked parts, most often a ring or a handle, from the main body of the puzzle.
Addictive puzzle games from Crea-Soft. Mind-crack our games and enjoy yourself!
Quality Interactive Crosswords and Puzzles. A1 Puzzles has over 350 quality puzzles, and with more than 60 new puzzles being added on a monthly basis, this is sure to provide the avid puzzle solver with 1000's of hours of fun.
Chess Store offers some of the finest chess sets, chess boards, chess pieces, chess games, chess clocks, chess books, chess com! puters and other chess equipments.
The purpose of this site is to become the starting point for the creation of Mensa Portugal, the Portuguese group of Mensa. Mensa is a nonprofit organization open to persons who have attained a score within the upper 2% of the general population on an approved and properly supervised intelligence test.
PottyPuzzles, the web sitefor 'manipulative' or mechanical puzzles, including Burrs, interlocking block, wooden assembly, and wire disentanglement.
See if your brain is up to the task! flooble :: perplexus is a collection various puzzle genres, from simple logic questions and word tricks to in-depth math problems like probability and geometry.
Founded by mathematicians, educators, and psychologists, the brains behind elogIQ have spent years of research and development in the pursuit of the best puzzles and brain teasers.
This great page by Ed Pegg Jr., published on September 6, 2005, is the most comprehensive source for Sudoku variants. Will Shortz, Nick Baxter, and Wei-Hwa Huang are also credited for their tremendous help in researching this column. Ed Pegg Jr. is the webmaster for mathpuzzle.com.
Portuguese site about intelligence, definition and measure; Online IQ tests with instant score, the Mental Performance Test and a Puzzle contest; Articles in Portuguese and English; Extensive resources directory, High IQ societies and discussion forums.
All puzzles on this site are Robert A. Kraus’ original work. Most of them are very difficult, and most require the use of a good spreadsheet program in order to be solved. It will take many hours, perhaps days, to solve each puzzle.
The Contest Center is America's oldest puzzle contest company operating under the same name with the same owner.
Mathematicians seek knowledge. In search of knowledge, they enjoy themselves tremendously inventing and solving new problems. Interactive Mathematics Miscellany and Puzzles makes an attempt to present mathematics as an evolving and entertaining subject in which an unsuspecting visitor may take an active part.
Full professor of 'Analisi Numerica', Dept. of Mathematics and Physics, Univ. Cattolica del Sacro Cuore di Brescia.
Good source for IQ tests, puzzles, trivia, games & contests for entertainment & education. AfreeB.com & Puzz.com Newsletter - a puzzle contest in every issue of our daily newsletter.
Thinks.com has the unique distinction of consistently being recognized as a top Education site as well as being a top Entertainment site. This reflects its commitment to the educational value of games and puzzles for all ages.
On-line puzzle magazine committed to giving solvers free, daily-updated, print magazine-class puzzles. User-friendly, Java interactive solving capabilities and careful construction by experienced print puzzle contributors distinguish CRpuzzles from other web sites.
Find information about language and culture independent puzzles and logic games that are published in puzzle magazines: Domino Logic, Number places, Battleship puzzles and more.
Original free puzzles from this witty Daily Telegraph (UK) brain teaser columnist and puzzle book author. Delightful cartoon illustrations, entertaining recreational mathematics articles and more.
The largest place in the German language Web denoted to puzzles, riddles and other brain food.
A resource for everyone interested in studying Japanese, offers Multimedia 16 Japanese lessons including cultural points, Math Lessons taken from Jr. high school and more.