The puzzles listed here are perfect for these kids. Not only do they offer some mental challenges, but they are portable! They can easily be carried in a purse or a backpack. They can be taken to school, to restaurants, and on road trips — anywhere kids might find themselves with some time to fill. That doesn’t mean the kids won’t be playing with these brainteasers at home. In fact, the whole family, including both mom and dad, will pick these puzzles up and find it hard to put them back down. So, if a peg has the number 6 on it, the numbers on the five triangle corners have to add up to 6. Sound easy? If so, then you might not realize that there is more than one peg. There are more than two pegs. There are ten. All the corners have to add up the numbers on all the pegs all at the same time!  When you first get the cube, you’ll find the side of the cube is made up of smaller cubes of the same color, so, for example, one side will be green, one white, one red, one yellow, one blue and so on. The fun begins when you twist the sides of the large cube around mixing up the colors. The goal is to get all the cubes of the same color to appear on the same sides again.