A challenging optical illusion where a woman needs help finding her keys. You can test your skills by spotting the hidden key within 7 seconds. Benefits of optical illusions and brainteasers, such as cognitive stimulation, problem-solving skills, memory improvement, creativity, focus, and search engine optimisation. So, can you help her find them? A challenging optical illusion where a woman needs help finding her keys. You can test your skills by spotting the hidden key within 7 seconds. Benefits of optical illusions and brainteasers, such as cognitive stimulation, problem-solving skills, memory improvement, creativity, focus, and search engine optimisation. So, can you help her find them? Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle