Brain teasers are puzzles or riddles that require creative thinking and problem-solving skills to solve. They often involve lateral thinking, logic, or wordplay, challenging individuals to think outside the box and approach problems from new angles. Brain teasers can vary in difficulty and may include various forms such as riddles, mathematical puzzles, visual puzzles, and logic games. They are commonly used for entertainment, educational purposes, or as mental exercises to enhance cognitive abilities such as critical thinking, concentration, and reasoning. The engaging nature of brain teasers makes them popular in both casual and formal settings, where they serve as a fun way to stimulate the mind.