Answer:
What instrument plays from the heart?
They are the group who manages the winged engines of war.
Brings you May flowers
Once you have it, you want to share it. Once you share it, you don’t have it. What is it?
Lots of them make up a word, And lots of words are in them. It's easy when you think about it. A while ago we stamped and mailed them.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?