Brain Training is where every puzzle on the site lives, sorted by format. Each format starts with an easy puzzle and builds up to harder ones. Open a format, solve the first puzzle, and use the Next puzzle button to keep going. Every puzzle comes with a hint, a hidden answer and a full explanation, so you always learn the trick, even when it beats you.
RiddlesShort riddles with a twist8Math PuzzlesNumbers, sequences and tricks9Logic PuzzlesThink it through step by step10Word PuzzlesAnagrams, ladders and wordplay8Matchstick PuzzlesMove a match, fix the equation6USA Trivia & NostalgiaGuess the decade, state or star7Detective CasesSolve the case from the clues13
How the Levels Work
Easy puzzles take under a minute and need no special knowledge. Medium puzzles ask for one small leap of thinking. Hard puzzles have several steps or a clever trap built in. Try to solve each one before you open the hint, and only open the answer when you are ready.