Visual trickery like puzzles can manipulate vision. ‘Hidden animal’ puzzles, with Waldo hidden in circus chaos, test visual acuity. In a park scene, a hiding tiger challenge awaits. Can you locate it in nine seconds? Put your observational skills to the test. Visual trickery like puzzles can manipulate vision. ‘Hidden animal’ puzzles, with Waldo hidden in circus chaos, test visual acuity. In a park scene, a hiding tiger challenge awaits. Can you locate it in nine seconds? Put your observational skills to the test. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle