? Well. I'm going to show you my favourite one. Try to do what the picture says as fast as you can. If you manage to do this in less than 30-60 seconds you really pay a good attention to detail. For me it is hard to find the 12th face, that's why I think there isn't a 12 face, but you could manage to find it. Share this
with your friends and on your facebook profile and help your friends and family understand if they can find all the faces too.