Clever optical illusion proves if you're gullible or quick-minded and can see through lies

This brainteasercould reveal whether you're easily fooled or a tough nut to crack.

At first glance, the image appears to be a penguin facing left against a blue backdrop. But look again and you'll see another dimension to the picture.

Focus on the black dot on the penguin's belly and it transforms into a man's face. The black dot is his eye, while the bird's head morphs into an Elvis-style quiff. The dip in the penguin's belly doubles as the man's nose. What did you see first?

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According to the puzzle's creators, what you see first - birdor man - can tell us something about your personality. These illusionsoccur due to our brains interpreting visual data in different ways, putting our perception to the test.

ZenBusiness suggests: "These visual puzzles can give you a good mental workout that can, in turn, help you think more efficiently and solve problems more easily."

Not only are these puzzles a fun way to kill time, but they can also give your brain a boost. Tackling challenging puzzles, brain teasers and optical illusions can enhance cognitive function, productivity and memory.

If you spotted the penguin first, the creators say you're quick-witted with sharp intuition and high emotional intelligence. Meanwhile, if you first noticed the man who resembles Elvis, it suggests that you might be less gullible and more easily satisfied. Those in this group may also be more innovative and adept at problem-solving, although they tend not to rely on their gut instincts.

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If you found that too straightforward, why not try your hand at what's been dubbedthe "trickiest" optical illusion puzzle on the internet?

This classic brainteaser challenges viewers to spot the sailor's wife in an image of a man gazing out to sea. Despite its seemingly simple premise, this puzzle has left TikTok users scratching their heads, with thousands left puzzled as they attempt to locate her.

If you want to challenge yourself to resolve even trickier puzzles and optical illusions, click here. You could either spend hours or prove you're a modern Einstein and resolve them within seconds... Which one will you be?