Answer:
I can travel from there to here by disappearing, and here to there by reappearing.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
I have it, I donโt share it. If I share it, I donโt have it. What is it?
I'm white, I'm round, but not always around. Sometimes you see me, sometimes you don't.
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
If itโs information you seek, come and see me. If itโs pairs of letters you need, I have consecutively three. What am I?