They have finished high school and are now all grown up! Send them away to college with a fantastic brain teaser puzzle to keep them busy while they are at school. These gifts are great because they go well with the college atmosphere. Keeping the mind sharp they can sit on a desk or a shelf in the dorm room when not in use. Or for the college graduate who is now going on to Masters but will also work in a business setting, give a brain teaser to keep the mind sharp for those long working and studying days that are ahead.