The challenges can help to improve focus and problem solving, as well as allowing you to secure bragging rights when solving the puzzles quicker than your family or friends.
So, if you are up for a challenge why not take on this autumnal themed illusion that features animals hidden amongst the leaves. The fun, albeit a little frustrating, test has been released by UK-based online printing company instantprint, with four animals nestling themselves beneath the yellow and orange leaves fallen from the trees.
According to the puzzle makers, only those with sharp eyes will be able to identify the four animals. Is that you?
Try your luck by looking closely at the image below.
If you are struggling a little, we have a tip that may help out.
However, if you are still taking on the task and do not want any hints, don't scroll down just yet.
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The animals you are looking for are a fox, turkey, hedgehog and a squirrel. See them now?
If you are just about ready to give up, you can find the answer below. Or if you want to make sure you have completed the teaser, compare your answers to those shown in the image below.
However, if you are still trying to spot the animals, take this as your spoiler warning!
Did you spot them?
If you are looking to test your brain some more, we have previously written about a whole range of brain teasers and optical illusions that are sure to keep you busy.
For example, what about this one where only 'sharp-eyed geniuses' can spot hidden items or test your IQ by trying to find solve this tricky number brain teaser against the 19 second clock.
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