Answer:
What can you catch but not throw?
I am merry creature in pleasant time of year as in but certain seasons I sing that you can hear; And yet I'm made a by-word A very perfect mock; Compared to foolish persons And silliest of all folk.
I am needed for most animals and hardcover books
What can you break even if you never pick it up or touch it?
What can travel all around the world without leaving its corner?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?