THIS mind-boggling optical illusion has puzzle fanatics stumped and struggling to find the answer – but do you have what it takes?
If you can spot the rogue brolly in this funky brainteaser, you may have 20/20 vision and a high IQ.
Not known, clear with picture deskCan you spot the umbrella?[/caption]Everyone can see the rucksack located at the left of this image – but only individuals with a high IQ can solve the taxing illusion.
The picture may look simple ...