SEEING YELLOW

Everyone can see the angry referee – but you need 20/20 vision to spot the three differences in just 12 seconds

Plus more optical illusions to try below

THIS is the brain-teaser that challenges you to spot the difference between two raging referees.

Both of them are in a huff about an on-field incident, but the two pictures are not completely identical.

This puzzle might bring back memories for those who liked to cause mischief on the sports field.

It's unclear what foul has been committed, but this ref is having none of it.

Perhaps a player was chatting back or landed a crunching tackle.

Whatever the crime, our official is clearly unimpressed.

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This spot-the-difference is tricky because the variations are subtle.

At first glance, there doesn't seem to be anything different at all.

Only the top 1% of geniuses can find the hidden dog in this rocky optical illusion in just five seconds - can you

The key is to study certain details and compare with the other picture.

But you'll have to scan quickly, because the clock is ticking.

Have you spotted the differences?

Here's a clue if the penny isn't dropping.

There's at least one difference on each of the men - don't focus all your attention on the referee.

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.

Psychologists at The University of Glasgow found that staring at an optical illusion can improve eye sight by allowing you to see small print.

Escape London says puzzles can also give your mind a great workout and may "boost your brain's activity" which "reduces the risk of dementia."

These can help to stimulate several parts of the brain at the same time.

Tasks like this can also provide people with a productive way to have fun and relax.