Polespo
Polespo is a quiz-game, where words are to be guessed right by letters. The game comprises three levels, on each of which answers to questions about history, mythology, science, geography, sport games, nature and other topics are to be found. On each level one is to play against two rivals who... For each letter in the word that you guess right a definite number of points will be added to your score, at the end of the game you will be able to send the result of your game to our site. ... You can pay for Polespo through the Internet with a major credit card and PayPal.
http://www.polespo.com/polespo.exe - 936Kb - Download - Screenshot

Cows and Bulls for PALM
Play classic game Cows and Bulls on your PALM. The objective is to correctly guess the 4 digits number generated by the computer. A bull means that you have guessed a digit and it is in the correct position. A cow means that you have guessed a digit but it is in the wrong position. ... The 1 BULL is for the digit "5" which, as you guessed, is in the first position. ... For example, if the is 5682 and your guess is 5870, then you have scored 1 COW and 1 BULL.
http://www.setupgroup.com/palm/sg_cowsbulls.zip - 49Kb - Download - Screenshot

Cows and Bulls for Pocket PC
Play classic game Cows and Bulls on your Pocket PC. The objective is to correctly guess the 4 digits number generated by the computer. A bull means that you have guessed a digit and it is in the correct position. A cow means that you have guessed a digit but it is in the wrong position. ... The 1 BULL is for the digit "5" which, as you guessed, is in the first position. ... For example, if the is 5682 and your guess is 5870, then you have scored 1 COW and 1 BULL.
http://www.setupgroup.com/pocketpc/cowsbulls.zip - 188Kb - Download - Screenshot

Cows and Bulls for Windows
Play classic game Cows and Bulls for Windows. The objective is to correctly guess the 4 digits number generated by the computer. A bull means that you have guessed a digit and it is in the correct position. A cow means that you have guessed a digit but it is in the wrong position. ... The 1 BULL is for the digit "5" which, as you guessed, is in the first position. ... For example, if the is 5682 and your guess is 5870, then you have scored 1 COW and 1 BULL.
http://www.setupgroup.com/windows/cowsbulls.zip - 312Kb - Download - Screenshot

MasterWord
CFB MasterWord is a Palm word game similar to Mastermind and Jotto. It will appeal to anybody with a good knowledge of words and logical reasoning skills. The free trial version is intended to be easy enough for children to play while still providing a good mental challenge. ... The object of the game is to guess a four-letter word selected by the computer with as few tries as possible. ... It has ten different words to guess and two levels of difficulty. ... The full version presents more of a challenge.
http://www.cfbsoftware.com/palmfiles/masterword.zip - 31Kb - Download - Screenshot

Sleuth
This is a new variation of the classic mastermind-style guessing game. Designed for all ages and skill levels, it will quickly become a new family favorite.
http://www.blackgames.net/ftp/sleuth.exe - 1Mb - Download - Screenshot

Roulette by FortuneBeach.com
Roulette game by FortuneBeach. com casino. Roulette is a very easy game to learn. It's simply a guessing game with a little white ball and a big spinning wheel. The ball spins in one direction as the wheel spins in the other, until the ball lands in one of the 37 spots on the wheel. ... If your bet is on the right number, set of numbers, or color, you win.
http://www.fortunebeach.com/downloads/winroulette.exe - 1Mb - Download - Screenshot

Lucky Match game
Lucky Match is beautifully implemented betting game with matches. Artful barman holds several matches behind his back and you need to guess which one is Lucky Match. Try to guess correctly and your bet can be multiplied by 6! You will love beautiful graphics, nice music and sound of Lucky Match... The game is absolutely free and does not require internet connection. ... Simply download it, launch it and enjoy!
http://www.fortunebeach.com/downloads/winluckymatch.exe - 1Mb - Download - Screenshot

Magic Games Collection
Magic Games Collection is a pack of six puzzles, including Magic Lines, Magic Balls, Magic Beads, Logic Trainer, Magic Tetcolor and Combat Engineer. Whether you want to improve your brain power or simply unwind and relax after a hard day, this joyful collection will tease your brains and help... In this game your objective is to make lines of at least three matching blocks. ... In Logic Trainer and Combat Engineer is all about guessing. ... In the first game, your objective is to guess the combination of six colors in four positions which are hidden from you.
http://www.agentix.org/download/MagicGamesSetup.exe - 5Mb - Download - Screenshot

Wurzgez
Wurzgez is a simple yet challenging word guessing game. The game is appropriate for anyone, of any age, who is an advanced word player. Wurzgez--a fun hybrid of Wheel of Fortune and classic hangman with power words and phrases in English, Italian, French, and Shakespearean--features full... This game is fully functional Shareware and costs only $10. ... 00 US to register.
http://www.winsite.com/bin/Info?3500000036256 - 2Mb - Download - Screenshot