It's a nursery rhyme many of us know by heart. But a baffled author has sparked up a Twitter storm - questioning why we believe Humpty Dumpty is an egg. In a viral post, writer Holly Bourne, of London ...

Many of us grew up singing the children's nursery rhyme Humpty Dumpty, the story of a giant egg who fell off a wall and cracked. Just to remind you how it goes: "Humpty Dumpty sat on a wall, Humpty ...