Fruit is healthy and apparently it's also good for your brain! This calculation will truly make your brain hurt.

On the Internet you can find many simple puzzles for children, and there are also quite a few more tricky ones for adults.

A Twittering mother posted this one on her account, which then suddenly went viral.

At first glance it looks super simple and you come up with a solution pretty easily. Try it. Your answer will probably (like mine) be 16, right?

Which isn't the correct answer.

The answer is 14. Why and how?! Let me explain it to you:

Three apples = 30 = Each apple equals 10
An apple + (2 bunches of bananas 4) = 18 = so 10 + 4 + 4 -> A bunch of four bananas = 4, so one banana = 1
A bunch of 4 bananas - 2 halves of coconuts = 2 = so 4 - 2 -> a whole coconut = 2, so half a coconut = 1
Half a coconut + apple + a bunch of three bananas = 1 + 10 + 3 = 14 !!!!!

Therefore, it turns out not to be a mathematical mystery. We simply didn't pay attention at first!