Answer:
What is something you can give away as many times you want without ever losing it?
What fastens two people yet touches only one?
These are the bumpy parts of your digits
What time of day, when written in a capital letters, is the same forwards, backwards and upside down?
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
When is it bad luck to see a black cat?