Brainteasers are a great way to test the mind and push one of the body’s most important organs to its limits.
They can come in many forms. They can be mathematical and ask a user to solve a trickly maths puzzle, or they can be observational and ask you to find the odd one out.
This latest brainteaser from FreshersLive is an example of the latter.
Above you have row upon row of 5Zs. Your task is to find the number 52 in under 5.2 seconds.
Did you find the number 52? No worries if not ... Read even more