Are you looking for a challenge today? Puzzles, brain teasers and IQ tests are popular online activities that can help keep your mind sharp. Today, we have a special puzzle to test your analytical skills – can you solve this equation in less than 15 seconds? The starting equation is 5+7=2. At first glance, it … Continue reading Math brain teaser: Can you solve this matchstick challenge in 20 seconds? Only 18% succeed!