Answer:
What demands an answer, but asks no question?
A famous home without color and with wings.
What time of day, when written in capital letters, is the same forwards, backwards, and upside down?
What goes up and down the stairs without moving?
What is in the middle of nowhere?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.