Brain Master IQ Challenge is a free online puzzle game with hundreds of free IQ challenges that will help improve your IQ. It's addictive with a series of brain test levels and IQ challenges. Think carefully to pass all the brain quests and become the person with the highest IQ. Let's started and enjoy the latest brain games today! Brain Master IQ Challenge, IQ test, IQ game, brain training, puzzle game, mental agility, cognitive skills, brain games, intelligence booster, free online game, brain exercises, logic puzzles, number puzzles, memory, concentration, brain challenge, fun puzzle, kids games, boys games