Answer:
I am an instrument capable of making numerous sound but cannot be touched or seen.
Soft, hairy, from door to door. I am the pet that always stays on the floor. What am I?
Only one color, but not one size, stuck at the bottom, yet easily flies. Present in sun, but not in rain, doing no harm, and feeling no pain. What am I?
Mr. and Mrs. Mustard have five daughters and each daughter has one brother. How many people are there in the Mustard family?
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
The answer I give is yes, but what I mean is no. What was the question?