Kids in Hong Kong can solve this logic puzzle in 20 seconds, but it completely stumps adults

First grade students in Hong Kong breezed through this puzzle in 20 seconds, but it has us stumped. Or at least it did before we looked up the answer!

Although the puzzle was invented two decades ago, it recently appeared on an elementary school entrance exam in Hong Kong, and has since gone viral.

The puzzle can be found on PuzzlersWorld.com, and both the Guardian and Daily Mail have reported on the trending mind game. 

Can you solve it?

PuzzlersWorld.com

The key is to not get caught up in complicated calculations or algebra. And not to think so hard!

So ...

Here's a tip ... try looking at the puzzle upside down ...

PuzzlersWorld.com

Seems pretty darn clear now, doesn't it?

The car, of course, is parked in spot number 87.

Children just look at things differently, and sometimes even more simply, without the baggage of all those years of life us adults have shouldered. 

Although children taking the elementary school enterance exam successfully solved the puzzle in the allotted time, adults across the world are scratching their heads.

The puzzle was invented by the famed puzzle author David Bodycombe, reports the Guardian. It was apparently inspired by a parking lot he saw in Portugal two decades ago.

Bodycombe was not aware his puzzle was used on the Hong Kong test, according to the Guardian.