Keeping your brain healthy is just as important as keeping the rest of your body healthy, and one of the best ways to give your mind a workout is through tricky puzzles that challenge you to think differently.
Optical illusions and brain teasers are a great way of helping to improve the brain's ability to perceive and interpret visual information accurately, and with a little practice, you could train your brain to crack difficult puzzles in no time.
So if you're up for a challenge, why not try this brain teaser that tasks you with finding which of the two women is the boy's real mum? You'll have to be quick though, as only geniuses can do it in less than seven seconds.
The picture shows two women looking at each other while a young boy sits on the ground playing with his toys.
But can you tell which of the women is the boy's mum?
At first glance, it may seem like there's nothing that immediately jumps out as different between the two women, and you'd be forgiven for thinking that either one of them could be the boy's parent.
If you take a closer look, however, you'll notice that there are a couple of details that make it obvious who the mum is.
Have you worked it out yet? If you're still working on it, don't scroll down too far, as we're about to give you the answer!
The boy's mum is the woman sitting on the left-hand side of the picture.
There are a few clues that point you in that direction, such as the fact that their hair colour matches, and the fact that the boy is facing her while playing with his toys, indicating that he feels comfortable with her and she isn't a stranger.
Also, the woman is leaning forward in her chair toward the child, which reflects the natural desire for a mum to protect her child - while the other woman is relaxed in her chair.
Did you manage to crack the riddle in less than seven seconds? Why not put your genius to the test in another of our brain teasers, such as this one which challenges you to find three red darts among the dartboards?
There's also this one in which you have to find the snake among the watermelons, and another which sees you tasked with finding the odd letter in just 11 seconds.
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