This optical illusion challenges readers to find the odd letter in a sea of ‘F’s, highlighting how these puzzles captivate by tricking our brains. Beyond entertainment, optical illusions offer insights into brain function, enhance cognitive skills, and inspire creativity. The article provides tips for solving such illusions, encouraging systematic scanning and attention to detail. This optical illusion challenges readers to find the odd letter in a sea of ‘F’s, highlighting how these puzzles captivate by tricking our brains. Beyond entertainment, optical illusions offer insights into brain function, enhance cognitive skills, and inspire creativity. The article provides tips for solving such illusions, encouraging systematic scanning and attention to detail. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle