Answer:
I reach for the sky but clutch to the ground. Sometimes I leave but I am always around.
Two bodies have I, though both joined in one. The more I stand still the faster I run. What am I?
Against the sun I protect your eyes and am often worn on the face of spies
I hold two people together but touch only one. What am I?
What did the thief get for stealing the calendar?
No matter how little or how much you use me, you change me every month.