New Delhi, July 25 -- Optical illusions are interesting, but these mind-bending visuals also prove that not everything our eyes reveal is the truth. By cleverly using shapes, colours, and patterns, these puzzles confuse the brain into seeing something different from what's actually the reality. So, are you sharp enough to beat the brain's own wiring? Try cracking this sneaky number puzzle that hides something unexpected. But the tough task here is that you only have 7 seconds to spot it. And remember, it is not about what you see, but how your brain decides to see it. That is the real illusion.

Think your eyes are razor sharp? Then put them to the test. This optical illusion is a grid filled with the number 256, except for one imposter: ...