Answer:
What do Delhi, Mexico, Guinea, Castle, Jersey and Foundland have in common?
What can go up a chimney down, but cannot go down a chimney up?
What's at least 6 inches long, goes in your mouth, and is more fun if it vibrates?
What starts with a 'P', ends with an 'E' and has thousands of letters?
What becomes easier to pick up the more it weighs?
I am carried by mad animals.