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 from thin metal to thick metal to 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.