Answer:
It covers you, you lose it every day and you'd die without it.
Retired people want these to be large and birds want them to hatch.
The thinkers usually hold this body part
What has many keys but cannot open a single lock or door?
It is a symphony of noise, It can produce both grief and joys, It is inspiring and grand, Made by a person or a band.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?