Optical illusions can be tricky brain teasers as you have to see through the visual traps that have been designed to confuse your mind.
For example, this clever optical illusion uses lines in the background to trick your brain into thinking that the fuel pumps that you see are different colours.
The experts at iCompario put the illusion together that shows four rows of fuel pumps which all appear to be different shades and colours - but that's not the case.
The concept is called Munker-White illusion, which uses colourful lines that cause the fuel pumps in the image to look like they are changing colour.
Michael White and Hans Munker are the psychologists who first demonstrated this effect in the 1960s and 1970s, according to Live Science.
All rows are all the same, but it is the colourful lines which tint the area around them and cause the fuel pumps to look like a different colour.
If you look closely you will see that behind the lines that overlap the pumps, is exactly the same colour as you will see in the first row.
Just yesterday, we shared a mind-bending illusion which makes items look smaller and larger than they actually are.
And if you're looking for a chance to test yourself, why not try this tricky brain teaser which challenges you to find the 'odd' letter within 13 seconds.
Did you know about the Munker-White illusion? Let us know in the comments.
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