Find the extra number: a puzzle for those with sharp eyesight

You have perfect vision if you can solve this challenging puzzle in seconds. Numerous studies have shown that regular brain training improves memory, brain function, and cognitive skills.

So try this interesting test. Look carefully at the table and find the extra number.

Puzzles are often thought of as just children's activities, but they are not. Brain training will be useful at any age. You don't have to spend a lot of time and effort on complicated math problems or logic tests.

Scientists say that even simple visual express puzzles will be beneficial if you do them regularly. The benefits, by the way, will be long-term, as there is a theory that daily intellectual training can reduce the risk of dementia and other age-related neurological disorders.

Puzzles provide cognitive stimulation, improve memory, and focus.

Solving such exercises has been proven to improve the functioning of the prefrontal cortex.

You have perfect eyesight if you can see the extra number in less than 10 seconds.

So, did you manage to find the extra number quickly?

The correct answer is below.

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