IQ tests are designed to help you increase your intelligence level. In fact, you improve your ability to observe by familiarizing yourself with puzzles like this one. If you want to train your brain, you’ve come to the right activity. But what exactly should you do? IQ Test Guide IQ tests measure how smart you … Continue reading IQ test: Are there 3 differences between the 2 pictures? You’ll prove you’re smart if you find them in 30 seconds.