Answer:
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
I run up and down the stairs without moving. What am I?
I am in the middle of water but am not an island.
Part carbon, part water, I am poison to the fishes. Many falsely claim my name, I am the pause that refreshes. What am I?
What can you break even if you never touch it?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?