An optical illusion has ignited heated discussion online, leaving viewers baffled over the concealed numbers lurking within the puzzle. The mesmerising image features a circle filled with swirling black patterns, but what's really set tongues wagging is the mystery of what's actually contained within that circle. More precisely, which number lies hidden inside. Twitter user Benonwine posed the question online: "Do you see a number? If so, what number?" the Daily Record reports. Users flocked

Tag-uri: Twitter