Do you think you have the eyes of a sniper? This tough brainteaser will put your mind to the test – so set a timer and see if you can solve it in less than 10 seconds Redditors posted the challenge and put their eyesight to the test (Image: Catherine Falls Commercial via Getty Images)

Maintaining an active mind can help to boost cognitive function, strengthen memory, as well as improving concentration and focus. Some experts even suggest that consistent mental exercises could help ward off dementia symptoms. ‌

Many people turn to brainteasers and puzzles to keep their minds sharp – and it's believed that introducing time constraints can amplify the benefits further. Also, brainteasers aren't merely entertaining – they're an excellent method of concentrating your thoughts an

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