The advert Paddington Bear is in is a Macdonalds ketchup advert. Try some - it's really nice!
Because he was found at Paddington Station in London.
According to Michael Bond, the author of the Paddington stories, he was inspired by a teddy bear which he had bought for his wife. So there was no actual bear that Paddington is based on.
He was named after Paddington station in London.
A teddy bear
cocoa