A MIND-boggling video of a woman juggling three balls has gone viral, with viewers jokingly claiming she has three arms.
The video, which was uploaded to Twitter on Tuesday, shows a woman juggling three lit up balls, two of which are blue with the third coloured red.
Graphics onscreen instruct viewers to follow the red ball.
At first, all seems fine in the video as the woman begins only juggling with the blue balls.
She turns it up a notch and introduces the red ball, which turns blue shortly after.
People can only answer HALF of these questions – can you do any better?
The woman manages to juggle two of the balls in her right hand while catching the third in her left hand.
She then drops the third ball into her right hand creating a mind-boggling illusion.
Throughout the 25-second clip, the woman passes the extra juggling prop between her right and left hand proving it difficult for viewers to keep their eye on the original red coloured ball.
At the end of the clip, the woman holds all three balls in her hand, giving the viewer an opportunity to guess which was the red one.
But the answer isn't given.
Within days of being uploaded, close to 3million people had watched the clip.
Many of which claimed ball one was the right answer, with others stating they thought different.
“This is crazy, but it’s one right?” one asked.
Optical illusions are often hitting the headlines after leaving viewers confused.
Researchers from Harvard University developed a new optical illusion leaving people questioning the difference between two colours.
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