IQ Busters are a popular puzzle activity for those looking to challenge their brain. These little puzzles are great stocking stuffers and can often be found at a retailer's counter at checkout. The Outset website sees a ton of traffic from those seeking the puzzle solutions - so never fear, we have them here! These brain busting puzzles come in various types in wooden puzzles. No matter which type you choose, you'll be challenged; they're just not easy! But, they are lots of fun. Enjoy the brain teaser.