Illusion is derived from the Latin verb illudere, which means to mock or trick. Optical illusion pictures are designed to trick the human mind and are regarded as one of the simplest tests to determine attentiveness.
Neuroscientists used optical illusion pictures to study how the brain creates the perception of reality. We tend to form a perception of reality in our brains, thanks to the brain's ability to fill in gaps in visual information.
Individuals who practice optical illusion puzzles regularly tend to have better problem-solving abilities and observation skills than those who don’t.
Do you have high visual acuity and intelligence?
Then unravel the hidden number in this 3D optical illusion picture and test your eyes and brain.
Also Read: Optical Illusion Test: Only 1% can spot the hidden wolf in 5 seconds!
Can You Decode the Hidden Number In This 3D Optical Illusion?

Source: Facebook
In the image shared above, readers can see a trippy 3D optical illusion rug that gives the impression of a never-ending tunnel with geometric shapes. The inner walls of the tunnels consist of repeating square frames which have a hollow centre.
The complete sequence of this 3D optical illusion is arranged in such a spiral pattern that draws the viewer’s attention inward.
Looks mind-blowing, right?
But, is that all you see or have you missed something?
As suggested by the title, a hidden number lies within this 3D optical illusion image.
Can you identify the hidden number?
This 3D spiral optical illusion presents a good opportunity to flex your cognitive skills and use your razor-sharp intellect to spot the hidden number.
In short, it will be a great way to test your observational skills.
Only 1% with high visual acuity and intelligence can spot the hidden number in 7 seconds. Are you one of them?
Hurry up; time is running out.
Have you spotted the hidden number?
A few seconds remaining.
Two…
One…
And…
Time’s up.
Now, how many of you could spot the hidden word within the time limit?
Congratulations if you are among those elite puzzle solvers who have spotted the hidden number.
If you couldn’t spot the number, don’t worry —we have got you covered.
Are you curious to know what the hidden number is?
The solution will be provided at the end of the article.
Get ready for the revelation of the answer.
Here we go.
Also Read: Visual Illusion: Can You Find ‘45’ Among ‘54’s in 7 Seconds?
3D Optical Illusion - Solution Revealed
The hidden number is 237, as shown below. The number is not visible at first glance, as the 3D optical illusion plays with perspective and depth, leading our brain to perceive it as a never-ending vortex.

If you loved this optical illusion challenge, you can try out some more challenges from our recommended reading section below.
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