Solving optical illusions requires patience, observation, and strategic techniques. To spot hidden numbers, viewers should look from different angles, adjust lighting, and use peripheral vision. These activities enhance observation and concentration skills while promoting creative thinking and problem-solving, beneficial for maintaining cognitive health. Solving optical illusions requires patience, observation, and strategic techniques. To spot hidden numbers, viewers should look from different angles, adjust lighting, and use peripheral vision. These activities enhance observation and concentration skills while promoting creative thinking and problem-solving, beneficial for maintaining cognitive health. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle