Our brains, like our bodies, require training and maintenance. And, of course, one of the best ways to do so is to put our observation abilities to the test on a regular basis!

Looking for minor features in an image might help you brush off certain skills that you may not use on a regular basis, all while having a little fun. The best part is that you won’t even realize you’re working out your brain.

IQ, short for intelligence quotient, is a measure of a person’s reasoning ability.Many colleges and universities also use exams similar to IQ tests to select students.