THIS brainteaser has even the most seasoned puzzlers stumped and scratching their heads trying to find the answer.
Everyone can see the kids collecting rubbish but you may have 20/20 vision if you can spot the hammer in less than nine seconds.
The picture shows a bunch of happy kids all lending a helping hand cleaning the beach.
But a hammer is hidden somewhere in the image and it's your job to find it.
The illusion is made especially difficult as there's lots going on and it's easy to get distracted from the task in hand.
For example birds can be seen flying in the sky as a sail boat glides along the water.
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Any luck yet? If not here's a clue - the answer can be found on the left side of the screen.
Don't worry if you're struggling, this is one of our most tricky teasers so far, and we have included the solution at the bottom of the page.
Meanwhile, why not try some other optical illusions while you scroll?
Test your brain power and solve the questions in this test to reveal if you have a high IQ.
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Or, see if you have the eyes of a predator and spot the bird hidden among the branches.
Psychologists at The University of Glasgow found that staring at an optical illusion can improve eye sight by allowing you to see small print.
And according to "These visual puzzles can give you a good mental workout that can, in turn, help you think more efficiently and solve problems more easily."
How can optical illusions and brainteasers help me?
Engaging in activities like solving optical illusions and brainteasers can have many cognitive benefits as it can stimulate various brain regions.
Some benefits include:
- Cognitive stimulation: Engaging in these activities challenges the brain, promoting mental agility and flexibility.
- Problem-solving skills: Regular practice enhances analytical thinking and problem-solving abilities.
- Memory improvement: These challenges often require memory recall and can contribute to better memory function.
- Creativity: They encourage thinking outside the box, fostering creativity and innovative thought processes.
- Focus and attention: Working on optical illusions and brainteasers requires concentration, contributing to improved focus.
- Stress relief: The enjoyable nature of these puzzles can act as a form of relaxation and stress relief.