Optical illusions challenge the brain’s perception by presenting visually perceived images that differ from reality. This article introduces a puzzle featuring a grid of the number 45, with a single instance of 46 hidden among them. These illusions engage attention, test visual discrimination skills, and provide insights into how our visual system processes information. Optical illusions challenge the brain’s perception by presenting visually perceived images that differ from reality. This article introduces a puzzle featuring a grid of the number 45, with a single instance of 46 hidden among them. These illusions engage attention, test visual discrimination skills, and provide insights into how our visual system processes information. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle