This Simple Sum Is Driving Internet Users Wild

This logical sequence of numbers may drive you mad, but it is possible to find the solution. Just forget everything you know about numbers!

Here is a sequence of numbers: 1 - 11 - 21 - 1211 - 111221 - 312211 - ???

It may seem complicated at first glance, and yet there is nothing simpler when you know what the answer is! You don’t need to do any calculations, even a primary school child who can only count up to 3 can figure it out. Intriguing isn’t it?

Once you've taken a minute to think about it, check out the video above for the solution to this fiendish brain teaser!