Answer:
What dress does everyone have, but no one wears?
I have no head and a tail I lack but I do have arms and legs and back; I inhabit the palace the tavern the cot 'tis a beggarly residence where I am not. If a monarch were present (I tell you no fable) I still should be placed at the head of the table.
I start with āeā end with āeā. I have whole countries inside me. What am I?
I'm found in socks ties and hands. What am I?
When I come in from sea to shore twenty paces you'll see No less no more.
No matter how little or how much you use me, you change me every month.