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

Feb 4, 2026, 21:13 IST

Explore a simple optical illusion puzzle designed to improve concentration and pattern recognition. The challenge focuses on spotting a hidden number while demonstrating how perception can overlook small differences.

Find the Hidden Odd Number
Find the Hidden Odd Number

Optical illusions are designed in such a manner that they continue to fascinate people. This is  because they reveal how our brain interprets visual information and how our brain can fill in the gaps. What we see is not always a direct reflection of reality. There are many instances where these puzzles are also used in psychology to demonstrate how perception works and how our brains can easily fall victim to patterns and similarity. 

The Dean McGee Eye Institute mentions: “Optical illusions occur when your eyes are presented with colors, lights, patterns, borders or areas of contrast that mislead the brain. It tries to piece together images using optical clues, learned assumptions and past visual experiences. In these cases, there is a difference between the reality of what you see and what your brain thinks you see. As a result, your brain makes a guess and is tricked into seeing something that does not exist, or it struggles to decide between alternating versions of an image.”

When we look at an illusion, our eyes collect information quickly, but the brain simplifies what it sees to save effort. This shortcut is useful in everyday life, yet it can make us overlook small differences hidden inside repeated patterns. That is why optical puzzles are not just entertaining as they are exercises in attention, focus, and visual discrimination.

Today’s puzzle is designed to test how carefully you observe details. At first glance, you will observe a white background that is filled with the number 49. However, looks can be deceiving as one of the numbers is different in this image. Your task is to spot the odd hidden number among the rest.

To make the challenge more interesting, try completing it within a time limit of 19 seconds.

Are you ready to complete this engaging challenge?

Start your timer and put your complete focus in finding the odd number. All the best! 

Try: This Optical Illusion IQ Test Is Said to Be Solved Only by Those With a High IQ 141 — Can You Find the Two Hidden Cats?

Optical Illusion Puzzle: Find the Hidden Odd Number in 19 Seconds

8f2b8a5693822b8c7c7920205d7942ca

Source: Pinterest

Have you found the odd number yet?

If not, here are a few simple hints and we promise you no spoilers:

  • Slow your pace and divide the image into smaller sections so that you can observe things carefully.

  • Focus on the shape of each digit. It will help you find the number overall. 

Hurry up as the time limit is almost up! 

3… 2…1

Oh no! The time’s up.

If you spotted the hidden odd number, congratulations, this shows your strong focus and how observant you are. If you are still searching for the number then it is alright you don’t need to worry. Many people find that taking a break for a moment and trying again improves their chances.

For those who are curious for the solution, we have mentioned it below. 

Try: This Tricky Optical Illusion Is Confusing the Reddit: Try Finding the Hidden AirPod in 15 Seconds

Find the Hidden Odd Number: Solution

The answer is mentioned clearly in the image below.

8f2b8a5693822b8c7c7920205d7942ca-one

Source: Pinterest

Optical puzzles become easier when you practice as your brain learns to slow down and inspect details more deliberately. You can keep exploring similar challenges and share them with your loved ones to see who solves them the first.

Must Try: Your Time to Showoff Your Eagle Vision! Spot the Hidden Odd Flamingo


Nikhil Batra
Nikhil Batra

Content Writer

Nikhil is a dedicated content writer with more than five years of experience, and works for the Jagran Josh General Knowledge section. He likes to create engaging and easy-to-read general knowledge content. He has spent years working on brain teasers, optical illusions, trending stories, and informative listicles that simplify facts for readers. His approach focuses on clarity, creativity, and making information feel effortless to understand.

... Read More

Get here current GK and GK quiz questions in English and Hindi for India, World, Sports and Competitive exam preparation. Download the Jagran Josh Current Affairs App.

Trending

Latest Education News