Answer:
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
The dirtier I get, the whiter I am. What am I?
My rings are not worth much, but they do tell my age. What am I?
I donโt forget!
Whatโs a carpetโs favorite sport?