Answer:
Iβm tall when Iβm young. Iβm short when Iβm old. I can light up your world. What am I?
Where I am there is no south, west, nor east, and weather is not fit for man or beast. What am I?
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
What language does a billboard speak?
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?