People are struggling to find the two numbers hidden in this strange optical illusion — can you?

Optical illusions are more than just intriguing brainteasers since they act as tools for enhancing our cognitive abilities and problem-solving skills. Although these illusions may appear misleading at first, they offer an enjoyable mental workout as people attempt to uncover hidden patterns and numbers within the images. One optical illusion that has been going viral on social media, people need to locate the concealed digits juxtaposed against a black-and-white background. Cracking it requires patience and considerable effort, despite the initial appearance of simplicity.

An X (formerly Twitter) user, @EzraEfrat, shared the image of the optical illusion and wrote, "Special Eye Test! What number do you see? FYI – 87% of people fail this eye test.” Two numbers were hidden in the perplexing image, just waiting to be found. Millions of people viewed it since it went viral, and the number kept rising. One X user, @KATillacgrills, wrote her answer stating, “17 but now I have a headache.”

Another person, who goes by the username @JenniferF, commented, “Not looking… damaged my eyes last time… and I’m still having a hard time seeing… Is that you, Chong?” One more X user further confused everyone by writing, “I’m still seeing 69, wait 17…..nope 69.” User @reynoldsleon77 suggested a way to find the answer and added, “It’s actually more visible while you’re scrolling it.” This proves that to crack these kinds of optical illusions one must carefully study the image, paying attention to minute details and patterns.

To blend in with the rest of the picture, hidden digits are frequently camouflaged. One needs to keep an eye out for odd forms or lines that might be creating a number. To uncover hidden details, viewers can also adjust the brightness or contrast of the picture. Sometimes all it takes to reveal what's within is to tilt the phone or look at the picture from another angle. For instance, when people examine the number in this specific illusion from the bottom of the screen, it becomes visible. Optical illusions like this one aren't just a fun way to pass the time or challenge friends and coworkers, but they also offer a fascinating insight into how the human brain processes information and reveals how every person sees unique versions of reality.

Meanwhile, another prevalent kind of optical illusion is physiological illusion. It confuses people with too much light, shapes, and colors and tricks their minds into imagining something that isn't there. As a result, several optical illusions provide the appearance of a moving image even if the visual is two-dimensional and stationary. As reported by The Mirror, when an image gives the impression of depth or motion, the brain gets confused and starts making assumptions about what it is seeing, which results in a distorted perception of reality. Not just this, several other reports have also claimed that different kinds of optical illusions that go viral on the internet also help in revealing the inner personality traits of a person.