What Am I Riddles

Question: I have four wings, but cannot fly.
I never laugh and never cry;
On the same spot I'm always found, toiling away with a little sound.

What am I?

Question: Everyday I stalk you all day long,
With every move you make, I never make one wrong.
I vanish twice a day with the sun's height and fall,
I will follow you anywhere,
even the bathroom stall.

What am I?

Question: Every dawn begins with me At dusk I'll be the first you see And daybreak wouldn't come without What midday centers all about Daisies grow from me I'm told And when I come I end all cold But in the sun I won't be found Yet still each day I'll be around What am I?

Question: what comes in hard comes out soft and you blow ???????????????????????????????????????/

Question: Change a long pause into a short one by doubling a letter.What are the words?