Answer:
In the evening I'm long, in the morning I'm smallอพ When seen in a ballroom, I'm nothing at all.
I am the red tongue of the earth, that buries cities.
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?
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.
If itโs information you seek, come and see me. If itโs pairs of letters you need, I have consecutively three. What am I?