Very Difficult Analytical Puzzles 3. The Fake Coin You have twelve coins. You know that one is fake. The only thing that distinguishes the fake coin from the real coins is that its weight is imperceptibly different. You have a perfectly balanced scale. Expand Your Mind - Puzzles and Brain Teasers To expand your mind you need to learn new facts and develop new modes of thinking that will make the information that you already know more useful. Solving the following problems requires a combination of world knowledge, mathematics, common sense, logic, and science (chemistry, physics). This is not an IQ test. There is no time limit. To expand your mind, do not look at the answers until after you have made an honest effort to figure out the problems. The Bear

Crossword puzzle maker The Crossword puzzle maker is used to make simple crossword puzzles. It turns out that good crossword puzzles of the type found in newspapers are fairly hard to generate, and require a pool of lots of words, not all of which are used. This program puts all of the words you specify (no more, no less) into a simple crossword puzzle. Contents, Interactive Mathematics Miscellany and Puzzles Since May 6, 1997You are visitor number E66B7E in base 20 Raymond Smullyan, a Mathematician, Philosopher and author of several outstanding books of logical puzzles, tells, in one of his books, a revealing story. A friend invited him for dinner. He told Smullyan that his teenage son was crazy about Smullyan's books and could not wait to meet him. The friend warned Smullyan not to mention that he is a Mathematician and that Logic is a part of Mathematics because the young fellow hated Mathematics.

The Hardest Logic Puzzle Ever The Hardest Logic Puzzle Ever is a logic puzzle invented by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. A translation in Italian was published earlier in the newspaper La Repubblica, under the title L'indovinello più difficile del mondo. The puzzle is inspired by Raymond Smullyan. It is stated as follows: Three gods A, B, and C are called, in no particular order, True, False, and Random. Rob's Puzzle Page - Home Welcome to Rob's Puzzle Page - an on-line mechanical puzzle collection / puzzle museum. I maintain this site to report on the world of mechanical puzzles, to have fun, and share information with my family, friends, and other puzzle-people. In addition to lots of pictures of puzzles, you'll find information about puzzles, many pointers to where to get them, and some help with how to solve them. Explore using the menu at the left of this (and the bottom of every other) page, the classification page, or the site map.

Free Online Crossword Puzzles Boatload of Crosswords is the world's largest supply of crossword puzzles. Solve Boatload of Crosswords' 40,000 free online crossword puzzles below. The free puzzles below are the Small puzzles that come with the Boatload of Crosswords application. But the following features are only available with the application: Print puzzles, if you prefer to solve them on paper.Three puzzle sizes: 40,000 Small (13x13) puzzles, 40,000 Medium (15x15) puzzles, and 20,000 Large (19x19) puzzles.Save a partially finished puzzle, and finish it later.Pause and hide a puzzle, so your score isn't penalized for taking a break.Optional large fonts for the visually impaired.

Vi Hart: Math Doodling Remember that video about doodling dragons and fractals and stuff? I finally finished part 2! Here is a magnet link so you can dowload it via torrent. Here it is on YouTube: You can tell I worked on it for a long time over many interruptions (travelling and other stuff), because in order to keep myself from hating what was supposed to be a quick easy part 2, I had to amuse myself with snakes. The Superplexus This is the three-dimensional spherical labyrinth that challenges the limits of your manual dexterity and spatial understanding as you maneuver a 5/8" wooden marble through its entire course. The Superplexus is a complex network of chicanes, multi-planar hairpin turns, spirals, and staircases--even a vortex. Hand made from 3- and 6-ply Finnish birch that form the track, over 400 hours are involved in its construction.

Folding circle animation Wholemovement comes from the word geometry, which means "earth measure". The earth is spherical; the sphere is the only form that is inherently Whole. Measure is movement from one location to another. Comprehensively the word geometry means Wholemovement. Sudoku Games > Strategy By Numbers GameHouse has taken your favorite Sudoku games and turned them into online sudoku games! That's right -- GameHouse has the largest selection of download sudoku games as well. Invite your friends and family to play sudoku games with you! Play our very own GameHouse Sudoku and see why everyone is talking about this hit logic puzzle! It’s easy to learn but a challenge to master. Whether you're already hooked or you're new to Sudoku, GameHouse Sudoku is sure to be one of your favorite puzzlers!

UFO at NFL game A large, “cigar-shaped” UFO was spotted moving very swiftly in footage aired during an NFL game, on Sunday Oct. 23 in New Orleans. It was argued in an AOL article that the craft was caused by “insects that got caught in that interlaced video as they’re flying through with a wing beat frequency, and the frames are being captured at a frequency… that causes that look,” according to a member of MUFON, and similar sentiments were expressed by a special effects expert, who also stated that he was “sure that there’s a conventional explanation,” which shows us that his mind was made up before he ever saw any footage. I have to say that, since the object goes behind the church in two of the frames of the video, it seems highly unlikely to me that such an explanation is adequate.

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