Answer:
I am an odd number. Take away one letter and I become even. What number am I?
I start with āeā end with āeā. I have whole countries inside me. What am I?
I am known for my natural tuxedo and marching
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
What is black when it's clean and white when it's dirty?
The answer I give is yes, but what I mean is no. What was the question?