Timed Optical Illusion Puzzle: Search for the Hidden 8 in a Grid of Number 3s

Optical illusion is one of the most popular ways that can help you explore how the human brain processes visual information. 

These puzzles are designed in such a manner that they challenge your observation skills, increase your attention span as well as serve as a leisure activity. 

There are various researches and studies that show how these illusions play with our minds. These puzzles highlight a simple truth - what we think we see is not always what is actually present.

The Dr. Barnes Optometry mentions: “Given the vast amount of visual data our eyes take in every day, the brain develops shortcuts to efficiently process this overwhelming influx of information. These shortcuts, which rely on past experiences, help in forming a coherent view of our surroundings. Usually, these mental shortcuts are incredibly effective, allowing us to process visual stimuli seamlessly and unconsciously. However, optical illusions throw a wrench in this smooth process.”

“Optical illusions cleverly exploit these mental shortcuts, creating a mismatch between what is perceived and what is real,” it adds.

This puzzle below is here to challenge your visual skills and see how fast your brain fills in the gap. 

In the image below, you will witness the number 3 is written across a black background. If you observe closely, you will find that there is a single hidden odd number in this image which is number ‘8’. Your challenge is to spot that number but within a time limit of 15 seconds. 

Set the timer, focus carefully, and begin your hunt.

Try: At First It Looks Identical But One Number Is Different! Can You Find It in 19 Seconds?

Find the Hidden Odd Number in this Optical Illusion in 15 Seconds

Source: Pinterest

This puzzle has been played over and over by many people and we also tried this puzzle within our team. 40% of the people solved it within 15 seconds. 

If you think you have a better observation try solving it before this time limit finishes. 

Were you able to find the hidden odd number out? If you feel stuck, try these strategies:

• Narrow your focus and scan row by row instead of looking randomly

• Blink and refocus your eyes to reset visual fatigue

• Look for slight shape differences rather than colour

• Reduce distractions around you for a few seconds

The time limit will be over soon and this is your chance to prove your skills.

Time Check

3…

2…

1…

Stop.

Did you find the hidden odd number? Optical illusions are not a measure of intelligence, but they are a fun way to practice sustained attention and visual discipline. 

If you missed it the first time, try again without a timer. Accuracy improves with patience.

Here is the answer to this puzzle. 

Try: Prove Your Anthophile Skills and Find the Hidden Odd Flower in 19 Seconds

Find the Hidden Odd Number: Solution 

Source: Pinterest

Want another challenge? Try a new illusion and see if your focus improves with practice. Also share it with your friends and loved ones to see if they can beat this challenge. 

Must Try: Quick Visual Test: Find the Secret Hidden Number Sequence in 39 Seconds