Answer:
What comes once in a minute, twice in a moment, but never in a thousand years?
What can you share and still have all for yourself?
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
There are several different kinds, but the one you pick doesn't do its job. What is it?
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?