When was the last time you got some exercise? Many people exercise, but very few do it often enough or in the right way to truly make a difference.

I’m not talking about exercising your muscles by lifting weights or running on the treadmill. I’m talking about exercising your brain. If you aren’t giving your brain regular workouts, you’re missing out on benefits that come from keeping it active.

That’s where this unique picture comes in. It’s somewhat of an IQ test because you have 15 seconds to find the issue hiding in plain sight. If you can spot the error, you can be proud as one of the few who managed to find it.

People love puzzles for many reasons. Some enjoy them because they pass the time, while others appreciate the challenge. Brainteasers like this one not only test your thinking skills but also help keep your mind sharp.

However, this puzzle has a twist. It’s a simple problem hidden in plain sight. To find the error, you need to do more than just look closely; you need to think creatively and outside the box.

Puzzles like these have been circulating online for years. The mistake is right there in the puzzle, and once you see it, you’ll wonder how you missed it at first glance.

I’m about to reveal the solution. Make sure you’ve tried to solve it on your own before reading the answer.

Did you figure it out? The man has glasses that are square on one side and curved on the other.