Keeping your brain active is known to boost cognitive performance, enhance memory, and aid focus and attention. Some even suggest that regular mental exercises can delay the onset of dementia symptoms.

Brainteasers come in a variety of forms, and this particular puzzle is so challenging that it’s said only those with a high IQ can crack it. Despite its difficulty, tackling this problem could improve your mind’s ability to concentrate, as well as enhancing your memory and overall cognitive…