Pick-a-Word
Select longest valid words, to be replaced by the incoming letters. Our logical funny games are made to increases the player's intelligence's "muscles". The player trains his brain and has fun too. Einstein's intelligence is not impossible to achieve! ... The player can control his destiny in a very clear manner and this make the game interesting for everybody. ... The game ends when there is no place for the incoming letters. ... The object of Pickaword is to select valid words, aligned in a row.
http://www.holotronix.com/dwn/pkaword1.exe - 730Kb - Download - Screenshot

IceMania
Very entertaining arcade games (see below the detailed rules) that will give you some fun and some tough brain training - whatever you choose. Destroy the wall of ice and make spring come into your life. The rules are simple - turn small squares forming the wall so that they form figures of four... Watching the Demo will help you to understand the rules of every game. ... This game runs on any 32-bit Windows operating system (Win95/98, NT, ME, 2000, XP) and does not require any additional software.
http://www.gameyard.com/icemania/icemania.exe - 2Mb - Download - Screenshot

Sudoktress
Announcing the release of the hot new game Sudoktress. Sudoktress takes aspects of Sudoku and Tetris and melts them together in perfect proportions. The result is a game that is fast paced, fun and totally cool. You? ll amaze yourself as you start seeing patterns of numbers and colors at a... As this game pulls you in, it is an experience not to be missed. ... The Shareware version tantalizes you with a 1 level introduction to the game. ... This game is easy to play but hard to master. ... com).
http://www.sethland.com/SudoktressSharewareSetup.exe - 8Mb - Download - Screenshot

WildSnake Puzzle: TwistIt! - Vol.1
Looking for a real challenge? Your brain is missing the fresh and good training? Want to measure and compare the level of your intellect? Then this is the game for you! Give it a try right now! This game is based upon an original idea and includes 25 addicting puzzles in 5 difficulty categories. ... Nice original pictures of old and modern Europe - castles, palaces and other great sights. ... Free demo available. ... Top level challenging mix of Jigsaw, Slider and Rubik's Cube right on your desktop.
http://www.wildsnake.com/file/demo/tw/twist_it.exe - 6Mb - Download - Screenshot

PING-POOL
Have much fun training your reaction and concentration with this original arcade mix of ping-pong and pool (billiard). The game is easy on its start, but as you advance through levels (enjoying the game's cool all-3D visual effects and funny bonus items) it consistently makes your brain react... Great for making brakes in office work, but also can provide you great "extreme action" experience, depending on which level of speed and complexity (that are seperately adjustable) you choose according to your skills and mood.
http://www.dzsoft.com/download/ping-pool.exe - 16Mb - Download - Screenshot

The Mastermind
The Mastermind is redefinition of a menu-based strategy game. Take on the role of a mastermind to become the brain behind the crimes. Experience the innovative and original gameplay in this planning and resource-management strategy game. The game is all about making money. ... - Train your gangsters, equip them with various guns, and start gang wars! ... The game puts you in the heat of the city's gang wars where your gangsters fight the other rival masterminds in town. ... - Bribe police officers and make good use of them in various way.
http://www.totalgameplay.com/download/MMindDEMO.exe - 16Mb - Download - Screenshot