The numbers are all the same- a series of 876s. However, among all the numbers, there is one which is an odd one out. You have to spot the odd number in under 10 seconds.

Think you have sharp eyesight? This mind-boggling challenge will put your observation skills to the ultimate test.

An optical illusion showed a grid of numbers where one digit differed from the rest, leaving viewers puzzled as they tried to spot the odd one out.

Test your 140+ IQ level with this fun brain teaser! Find the odd number hidden in the '256' sequence series within 11 seconds to boost your observation and thinking skills.

An optical illusion is challenging viewers to find a hidden number within a repeating pattern. The image displays the number ...