Answer:
It stands upright and can be quite grand. Its secret is not hidden but right at hand. What is it?
The man who invented it doesn't want it. The man who bought it doesn't need it. The man who needs it doesn't know it. What is it?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard.
What relies on columns but isn't a house, and asks for help but can't speak itself?
What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.
What do angels sing in the shower?