Answer:
Every country has one, though we are not the same. Waving to our citizens, throughout the wind and rain. What is it?
Ch side by side, you are inside.
What starts with an "e" but only has a single letter in it?
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
What hatches without food?
Special abilities and brightly colored underwear are all you need to be one of these.