Answer:
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
What relies on columns but isn't a house, and asks for help but can't speak itself?
You must keep this thing. Its loss will affect your brothers. For once yours is lost, it will soon be lost by others.
A morbidly-named body of water
I tremble at each breath of air, and yet can heaviest burdens bear.
I can only be played on a windy day
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?