Still stumped? The hidden number is 89, hidden in a lighter font that blends into the circle. READ ALSO: Mind-boggling illusion: Only a sharp eye can find the crocodile on this island For more ...

Think you have sharp eyes? Here’s a fun challenge for you! Hidden among a sea of numbers 32 and 23 is a sneaky little number 33—can you spot it? This optical illusion is a real test of your ...