The brain is a muscle that needs to be exercised just like any other muscles in the body, and brainteasers are one of the best way to do this!

Gergely Dudás is known for creating adorable works of art that are also some of the most difficult brain teasers in the world. We’ve compiled five of Gergely’s most difficult puzzles, so scroll through these and see if you can solve them!

Here are tons of cats with their tails sticking up, but in this image, there is one bunny with long ears. Can you spot the bunny?

Can’t find the bunny? Keep looking!

We’ll give you the answer below, but give it one more shot!

This is your last chance…

Okay, here’s the answer!

Now try and find the one lollipop in this sea of ice cream.

This is a tough one, but give it a whirl!

Can’t find the lollipop? Me neither…

Okay, last chance, and then we’ll give you the answer!

Here it is!

Each of these tigers has a twin, except for one. Can you spot the twinless tiger?

There are twelve pairs of twins that have matching stripes, but one is all alone.

Don’t see it yet, keep trying!

Give it one more look.

Alright, we’ll give you the answer.

Can you spot the heart in this herd of elephants?

This one is really tough, but we promise there’s a heart there somewhere!

Can’t find it? Give it another look.

Keep trying!

One more chance, then we’ll give you the answer.

Alright, here it is:

Finally, try and find the magic wand among the Halloween candy.

This is the toughest on yet, so you need to look REALLY closely to find it.

Keep looking, don’t give up!

One more look, then we’ll show you the answer.

Here it is!

Which of the brain teasers was your favorite? Let us know in the comments section.