Answer:
The day is their night and the night is their day, when I shout and they shout back I run away.
What is something yet nothing, but if you fill it up it will disappear?
What was the first man made invention that could see through a wall?
What time is spelled the same forwards and backwards?
What is often returned, but never borrowed?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?