![People with 'sharp eyes' can spot nail in screws in under 15 seconds - can you?](https://cdn.newsserve.net/ONPglobe256.png)
People with 'sharp eyes' can spot nail in screws in under 15 seconds - can you?
A picture of a box of screws has left many baffled after people realised there was a nail hidden among the metal fasteners - but it's not easy to spot, so how quickly can you find it?
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