15 Puzzle
In this puzzle you must move squares round a grid to place them in order. If you can't solve the puzzle, it will solve itself before your very eyes. With this program you can transform your favorite pictures (in bmp, gif, jpeg, pcx, png, tiff, or xpm format) into classic sliding puzzles. ... Also contains the Rate your mind pal puzzle. ... A clever variant of Sam Loyd's famous 14-15 puzzle.
http://www.hc11.demon.nl/15puzzle/15puz40.zip - 2Mb - Download - Screenshot

Diamond Puzzle
Diamond Puzzle is a brand new exciting mind breaker. This game requires some wit but is by no means one of those boring slow moving puzzles. Actually here you can choose your own style of play. It has two different modes to suit those who like to take their time and think ten moves ahead and... The gameplay is about as addictive as it can get and the innovative 3D graphics will keep your mind set on playing this one on and on. ... This along with the original music and sound effects will let you relax a bit and get away from the daily trouble.
http://www.puzzle-game-download.com/files/diamondpuzzle.exe - 2Mb - Download - Screenshot

Neko Puzzle
Think fast to guide a little jumping cat around each puzzle before the time runs out. Features adorable graphics, a puzzle solver in case you get stuck, and a random puzzle generator so that you never get the same puzzle twice! Possibly the easiest puzzle game in the world to learn how to play,... by Lexaloffle Games.
http://www.lexaloffle.com/NekoPuzzleDemoSetup.exe - 641Kb - Download - Screenshot

Puzzle 15
Educational puzzle 15. Use yor mind for sloving this logic game. This game will develop your mind. You can play it online. It free. Find math and logic games and puzzles. Educational puzzle 15. Use yor mind for sloving this logic game. This game will develop your mind.
http://www.ababasoft.com/kids/15.zip - 15Kb - Download - Screenshot

Vault Vex
Vault Vex is a unique puzzle game where you use your strategic thinking and color matching abilities to solve over 60 different jigsaw-like puzzles which range in difficulty from easy to mind-bending. You'll get many hours of enjoyment out of Vault Vex because every puzzle is different each time... Play Vault Vex for a quick break or as a relaxing wind-down at the end of the day--the easiest puzzles can be solved in a matter of minutes, but the more complex ones can keep you going for much longer!
http://www.vaultvex.com/demo/vvevalsetup.exe - 2Mb - Download - Screenshot

Tangram 3D
Tangram is a noble game of ancient East. Borned in China, it conquers hearts and minds of both emperors and commoners all over mysterious China. Currently Tangram puzzles continue to attract people and remains favourite puzzle of modern ages. Goal of Tangram is to assemble sample figures from a... Game opens your mind and gives a freedom to your imagination. ... Increase your intellectual potential and join cultural heritage of Eastern wisdom. ... Now not only classical 7-pieces set, but genuine 14-pieces advanced set mode.
http://www.terragame.com/cgi-bin/tangram/tanddl.exe - 3Mb - Download - Screenshot

Cipher - A Cryptogram Game by uuba.com
Challenge your mind with great quotes and bad jokes. Cipher is a word game to unscramble phrases by correctly substituting letters of the alphabet into the puzzle - hence deciphering the phrase. Freeware edition includes 1400 puzzles, ability to load other puzzle files, and "crypto-tool" to...
http://www.bradtrupp.com/sw/dl4006.php?icipher0.exe - 412Kb - Download - Screenshot

Pathfinder
Challenge your logical skills with space themed puzzle game Pathfinder. Guide your space fleet back to your home base. However, the journey is filled with dangers and obstacles. Encounter planets and space debris which block your way, comets which change the path of your ships, and even vortexes... Soothing music will relax the player’s minds for the mind-boggling missions ahead. ... Pathfinder features graphics with a sci-fi theme which will be very familiar to fans of Star Trek, and appeal to gamers seeking a challenging and fun puzzle game.
http://www.mad-data.com/pathfinder/pathfindersetupdemo.exe - 3Mb - Download - Screenshot

SETH's Puzzle Boxes
Battle your way through 40 mind twisting puzzles in an attempt to rescue Selena's parents from the clutches of the evil android, SETH. Strain your brain against 4 styles of play - story mode, match mode (try to keep up with SETH! ), timed mode and practice. ... Puzzle your way through all 4 realms - water, wind, fire and technology! ... Let's find out! ... Can you match wits with an android? ... With a tutorial built right into the game, you won't waste any time getting up to speed and going after SETH!
http://www.respawngames.com/sethsp...es/SETHsPuzzleBoxesDemo_Setup.exe - 8Mb - Download - Screenshot

Mah Jong
No matter how you spell it- Mah-jongg, Mah-jong, Mah jongg , Mah Jong. A Classic Mah Jong Solitaire game! Mah Jong Puzzle is the mah jongg - like tile solitaire game for Windows. It is a fun puzzle game like mah jongg, that tests your mind. Its intuitive interface is very easy to learn, and you... Mah Jong puzzle is a high-quality collection of Mahjong solitaire games. ... The goal of Mah Jong Puzzle is to remove all of the tiles from the game board. ... Game rules is bent a bit to make it more challenging by adding a free online flash game.
http://www.ababasoft.com/flash_games/mah_jong.zip - 10Kb - Download - Screenshot