Answer:
What starts with an 'e' and ends with an 'e' but only has one letter?
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
Fashions change, but what can a person wear that is never out of style?
What is seen in the middle of March and April that cannot be seen at the beginning or end of either month?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I flow from the Homerβs mouth when he sees doughnuts.