Answer:
Until I am measured I am not known, Yet how you miss me when I have flown.
I fly through the air on small feathered wings, seeking out life and destroying all things.
What surrounds the world, yet dwells within a thimble?
What can be underwater, under fire, on fire and taking water all at the same time?
I cannot be felt, seen or touched. Yet I can be found in everybody. My existence is always in debate. Yet I have my own style of music.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?