You have 20/20 vision if you can spot the odd number in this sequence of 9s in under seven seconds

ARE you ready to solve one of the most twisted optical illusions ever created?

Only people with a high IQ and an impeccable 20/20 vision can crack the challenge in under nine seconds.

Spot the odd number in under nine seconds

The image shows a sea of number nines – but there is an odd digit sneakily hiding in between.

And your job is to find it as quickly as possible.

Don’t get confused – the identical number can trick your brain into thinking there is no odd number in between.

Most people were left baffled by this complex challenge.

Although it may seem like an ordinary image, this is no easy feat, and the average person gives up after a minute.

But you can try your luck and see if you can crack the challenge and beat these people.

And you have just nine seconds to solve it and become a winner.

So buckle up, set the timer, and test your puzzle-solving skills.

But be warned, you need the sharpest of eyes and the strongest of minds – and must remain composed throughout.

You are more likely to make mistakes if you try to rush it, so check every square inch of the image.

But did you know that solving optical illusions is a great way of training your brain and improving creative thinking?

Brainteasers are purposefully designed to trick our vision and can be used as simple determiners of intelligence.

Challenges like this, where you have to find an image within an image, aid your brain’s ability to interpret ambiguity.

So before you start with this one, why don’t you try to spot the hidden shark in this unique optical illusion?

Try this mind-bending illusion of a dog hiding in the forest scene.

Or, spot the sneaky fox in just nine seconds to prove you are a genius.

Lastly, test your IQ with this brainteaser of an eel hiding in the reef and aim to solve it within ten seconds.

Coming back to our challenge – were you able to solve the mind-bending optical illusion?

If you didn’t see it, look again carefully.

Here is a hint for you: try to see the image from upside down.

If you are still scratching your head trying to figure out the confusing picture, we’ve marked the solution for you – scroll down to find it.

Congratulations to those who solved the puzzle in under a minute.

But if you managed to solve it in just nine seconds, you are a genius with a perfect 20/20 vision.

If you love solving such puzzles we have more such challenges for you at the bottom of the page – scroll down to find them.

The number was hiding in plain sight

Spot the hidden chipmunk

Try and spot the hidden be in this optical illusion

Spot the hidden squirrel

There is a hidden fox in this picture, try to spot it in nine seconds

Were you able to see it?

There it is

Were you able to spot the squirrel?

Playbuzz

The fox was hiding in the outline of the tree[/caption]