Answer:
What has to be broken before you can use it?
Come up and we go, Go down and we stay.
What calls for help, when written in capital letters, is the same forwards, backwards and upside down?
When is 1500 plus 20 and 1600 minus 40 the same thing?
What has a foot but no leg?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?