An optical illusion is going viral on social media. The image shows the alphanumeric U5A in all rows and columns. The challenge is to find the word USA hidden within the image. The illusion plays on the brain’s tendency to make assumptions, making it difficult to spot the odd word out. An optical illusion is going viral on social media. The image shows the alphanumeric U5A in all rows and columns. The challenge is to find the word USA hidden within the image. The illusion plays on the brain’s tendency to make assumptions, making it difficult to spot the odd word out. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle