For years, people have made the mistake in believing they can keep their mind sharp by merely doing crossword puzzles (although recently, Sudoku seems to have taken its place). True cognitive fitness, however, stems from immersing your mind in a wide variety of challenges and puzzle types. Here at www.smart-kit.com, you have the chance to stimulate and exercise not just one- but many areas of your brain with a great collection of puzzles and brain teasers, brain games, trivia quizzes, and jigsaw puzzles.
Enter a problem, and a unique URL is created. Once shared with others, a group can collaborate by adding questions, comments, solutions, etc. Very easy to use and effective way to solve problems.