It’s trickier than you might think, but it’s worth the time. Some games can even change the way you focus. It all comes down to discipline: If you take the time to focus on a task, it can benefit you in other areas of your life. Best of all, you don’t have to spend a ton of time on brain teasers. If you’re sharp-eyed, you can even beat some optical illusions in less than a minute. For example, if you can crack this puzzle in 30 seconds, you’re already in the top 1%.

Check it out

This optical illusion comes from a tech resale website called MusicMagpie. You can use this site to buy refurbished laptops, phones, tablets and more. It’s a British site, so all the amounts are in pounds rather than U.S. dollars. Want to buy refurbished tech closer to home? Kim’s got you covered. Tap or click here for the top three ways to buy refurbished tech. As you might expect from a tech refurbishing website, MusicMagpie’s optical illusion shows many old devices you can buy for low prices. Look through the jumble of iPods, CDs, and game controllers below. See if you can spot the hidden money amid all the tech clutter. According to MusicMagpie, only 70% of people can spot the hidden money in less than 45 seconds. Are you in the top 30% of people? Set a timer and test yourself! Give it a good, long look. Remember: You’re looking for a pile of cash. If you spotted it immediately, in less than 32 seconds, you’re probably an “elite brainteaser genius.” That’s high praise, but don’t feel bad if you haven’t found the money yet. It’s more complicated than you think because the tiny green iPods might trick your eyes. Maybe your timer just went off, and the 45 seconds already passed. That’s okay: There are many ways to train your brain. Test yourself with more than 15,000 brainteasers, riddles and logic problems. Keep looking and see if you can find the money. If you’re ready to throw in the towel, scroll down.

Here’s the answer

Look to the left of the image and you’ll find it. Luckily for you, we circled it just in case you squinted at the image for a few minutes and still couldn’t find it. (And just for good measure, we added an arrow!) Did this search-and-find puzzle give you pause? Maybe you’d like to solve optical illusions more quickly in the future. In that case, we’ve got you covered.

If you couldn’t spot the hidden money, try to beat these brainteasers next

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