Everyone can spot the happy dog enjoying his bone – but can you find his owner in just 12 seconds?

THIS MIND-BENDING optical illusion will put your mental metal to the test.

If you can find the dog’s owner in less than 12 seconds then you might be sharper than most!

The image shows a sweet-looking scruffy mutt, delighted by the bone he’s clutching.

But, although he might appear alone, his best friend is hiding somewhere in the image.

Have you found him? Here’s a clue. Try tilting the page at different angles, and look out for a moustache!

This puzzle is made especially difficult as the image includes intricate details which help the dogs owner to be better camouflaged.

Don’t be disheartened if you didn’t find him as this is one of our trickiest brainteasers.

And make sure to keep practising as according to vanishing ink magic the puzzles may have positive affects on your brain health.

It says: “Brain teasers will stimulate your cognitive ability and also help focus by making you concentrate on one task as a time.”

Meanwhile, why not try some other challenges while you scroll?

Stick to the animal theme and spot the mouse hiding among the squirrels.

Or fancy something festive?

Give this one…