What Am I Riddles

Question: I have numbers on my face but can't find 13 any place. What am i?

Question: I am often known as a symbol/mark, and can be used in a trend. I am created when two paths meet, but separate at the end. What am I?

Question: What can you see but not hear?

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

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?