Answer:
I start with āeā end with āeā. I have whole countries inside me. What am I?
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
Everyone has me and no one can lose me. What am I?
I am gold and can be black and white I'm a symbol for a nation when freedom took flight.
I stink in living but when dead smells good.
I'm a god. I'm a planet. I measure heat.