Optical illusions are a fascinating mix of art and science, designed to trick your mind and challenge your perception. These mind-bending visuals test your observation skills and cognitive abilities in exciting and unpredictable ways. Optical illusions are a fascinating mix of art and science, designed to trick your mind and challenge your perception. These mind-bending visuals test your observation skills and cognitive abilities in exciting and unpredictable ways. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle