Answer:
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
When the creeper passes, all the grass kneels
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
Hold the tail, while I fish for you.
What did the piece of wood say when he saw the screwdriver and screws approaching?