Different examples of brain games include crossword puzzles, Sudoku, brain puzzles, brain teasers and brain training. Nearly any sort of puzzle or game that is interesting can stimulate a person's mind.
Ordinarily in the shape of a square or rectangle, crossword puzzles are a word-oriented brain game where the goal is to identify words that fit given clues. In most versions throughout North America, crossword puzzles contain a large number of white squares, every letter is marked with a number for across or down and most answers contain a minimum of three letters. There are several other variations throughout the world.
Brain puzzles are logic-based riddles that typically rely on lateral thinking skills to solve. Often the solution is obvious once known, yet due to preconceived assumptions or oversights, people do not ascertain the answer on their own. For instance, a brain puzzle is, "A blind beggar had a brother who died. What relation was the blind beggar to the brother who died?" The answer is not "brother." This type of puzzle utilizes analytical skills, such as hypothesis testing, abstract reasoning and implied assumptions that demand use of the frontal lobe in addition to creativity to find an unexpected answer to a problem. The correct answer is "sister."
Brain teasers are riddles, puzzles and logic problems that try to stump people. An example of this is to determine the same word that can precede all of the following words to make a new compound word. The words are: fish, nap, walk and fight. The answer is "cat."