Answer:
I have a frame but no picture. I have poles but not standing up
I am what one cannot keep, two cannot hold, and three cannot destroy. What am I?
I donβt forget!
They come out at night without being called. They are lost in the day without being stolen. What are they?
I come without being fetched at night hides away as soon as daylight strikes. Although I may look small I am much mightier than what you can imagine.
No matter how little or how much you use me, you change me every month.