Optical illusion: Only those with sharp vision can spot the odd cake in 11 seconds

Optical illusions that task you with the odd one out are more than entertaining—they’re incredibly beneficial to brain well-being. Puzzling challenging problems improves concentration, develops thinking skills, and sharpens the intellect, all with the bonus of giving your brain a work-out Optical illusions that task you with the odd one out are more than entertaining—they’re incredibly beneficial to brain well-being. Puzzling challenging problems improves concentration, develops thinking skills, and sharpens the intellect, all with the bonus of giving your brain a work-out  Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle