Answer:
I am a room that has a roof but no walls. What am I?
I love to twist and dance. Though wingless, I fly high up into the sky. What am I?
I contain six letters minus one and you got twelve.
I think you live beneath a roof that is upheld by me; I think you seldom walk abroad but my fair form you see; I close you in on every side you very dwelling pave and probably I'll go with you At last into the grave.
I have 24 keys but cannot open any locks. Sometimes loud sometimes soft
No matter how little or how much you use me, you change me every month.