Answer:
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
I go through a door but never go in and never come out.
What's made of water but if you put it into water it will die?
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
I am an activity involving pins flying in the air.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.