Successfully locating the hidden ladder in the optical illusion of the library boosts cognitive skills and problem-solving abilities. The intriguing challenge enhances observation skills and mental acuity, leading to a satisfying solution confirmation with the red circle. Successfully locating the hidden ladder in the optical illusion of the library boosts cognitive skills and problem-solving abilities. The intriguing challenge enhances observation skills and mental acuity, leading to a satisfying solution confirmation with the red circle. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle