Easy Riddles and Answers

Question: What starts with an e but only has a single letter in it?

Question: In spring I look gay, Covered in a green array, The warmer it gets the more clothing I wear, As the cold grows, I throw away my clothes.

What am I?

Question: He has married many women, but has never been married. Who is he?

Question: What belongs to you but others use it more than you do?

Question: A man is twenty years old but has only had five birthdays. How is that possible?