Last week Lewis Hamilton, Formula 1 champion, said that he would like to turn his rival, Sebastian Vettel's smile upside down. So we decided to help him.
Click on picture or hover to see what he looks like.
A picture of a strawberry tart has got the internet talking, because whilst it might look reasonably normal, things aren't quite as they seem.
At first glance it looks like a poorly taken photo, or maybe one with far too many filters on it.
But what is actually in front of you is a picture with absolutely no red pixels.
The red colour of the strawberries is merely your mind playing tricks on you because of the blue background.
Things look different under, for example, fluorescent office lighting than they do in softer, lounge lighting so our brain makes an adjustment to make sure that we still see strawberries as red, regardless of where we're eating them.
Source - BBC
This is a beautiful revolving pattern by the very talented Teja Krasek. But if you stare at the centre until the end of the animation it apears to revolve slightly in the opposite direction.
Hover or Flip to see this cute dog's owner
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