If you’re one of the people who absolutely loves teasing and challenging their brain with optical illusions, then I salute you.

I myself am hopeless at them. When I was six, my grandma gave me a ‘train your brain’ book for my birthday. Needless to say, it didn’t leave the bookshelf until I was almost 16. Even then, I couldn’t get my head around half of the puzzles hidden within its pages.

And yet, I know brain teasers and illusions are immensely popular on the internet. People the world over like to test their skills when it comes to deciphering pictures and finding hidden things that are quite literally right in front of their eyes.

It’s with that in mind that I thought it would be a good idea to share one I stumbled upon recently. Low and behold, it has me stumped when it comes to getting a high score, but I can readily accept that I hardly have the keenest eyes of the human population. In the brainteaser below, readers are tasked with counting the faces in the “National Leaders Tree” …

It’s unclear where the image in question first surfaced, but it’s proving popular online as people try to one-up each other regarding how many faces there are to be found.

Of course, everyone can see the two faces at the bottom of the tree, but the fun comes in when you try and locate the others.

Apparently, the number of faces you see says something about your memory.

We know … there are more ‘academic’ ways to prove your aptitude in such things, but if you’re willing to have a go then write down how many faces you see. When you’re done, scroll down to see what your number means.

2 to 4 faces

As previously mentioned, the two faces at the bottom of the tree are there for all to see. If, however, you can only spot one or two additional faces, it may indicate that you have a memory disorder.

5 to 6 faces

Found more than four faces in the picture? Good. Keep looking, but if you only find five or six then it could mean you’re at risk of Alzheimer’s or dementia.

7 to 8 faces

Your memory is at a perfectly acceptable level, but it’s not great. You can continue training your brain by studying puzzles like these!

More than 9 faces

Congratulations, if you found 9 or more faces then you have excellent memory and facial recognition skills.

Did this picture get your blood boiling? Alright, have a look below to see where most of the faces are hidden.

How many famous faces were you able to get from the picture? Let us know in the comments box below!