Answer:
Poorly behaved children often find themselves sitting in these.
What speeds on a track but isn't in a race and has a whistle to announce its steady pace?
Words come out of it, aligned in perfect silence. A messenger of black on white, a slinky fellow drawing lines, of thin and soft graphite
What comes once in a minute, twice in a moment, but never in an hour?
My neighbor makes mistakes. I get rid of them. Who 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?