A captivating optical illusion tests your observation skills. Initially, the image shows just one man on a secluded beach, ...

Facundo Ildarraz, 17, and his family came to Miami from Argentina to catch a cruise and had a few days to check out the city.

Two in five people who've tried the optical illusion have had to give up - but can you see the hidden cash total?

Moncton, New Brunswick, Canada Imagine driving to the base of a hill, putting your car in neutral, and watching as it appears ...