Answer:
It is the electronic version of junk mail or a salty meat in a can.
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
You can spin, wheel and twist, but this thing can turn without moving. What is it?
What has a bell but isn't a church. Is full of air but is not a balloon?
What moves without seeing and cries without eyes?
What did the piece of wood say when he saw the screwdriver and screws approaching?