India, Sept. 5 -- Optical illusions are going viral on the internet. The latest puzzle to grab attention online is a 10x11 grid filled with the word CAT, repeated over and over. At first glance, it looks like a standard visual repetition challenge. But if you look closely, one word is slightly different - CTA. Your task is to spot the odd word out before time runs out.

The challenge lies in how our brains scan patterns. "CAT" and "CTA" use the same letters, just in a different order. Your eyes naturally jump over familiar sequences, which makes spotting the anomaly harder than it seems.

Similar optical illusions often flood Twitter, Instagram, and TikTok. Users are tagging friends, sharing screenshots, and bragging about their time to f...