Answer:
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
Come up and let us go. Go down and here we stay.
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own. What are they?
My first is nothing but a nameอพ my second is more smallอพ my whole is of so little fame it has no name at all.
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find.
The profession of Jimi Hendrix and Eric Clapton
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?