Answer:
What is it that given one, youβll have either two or none?
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
What has to be broken before it can be used?
Iron on a mammal. Mammal on your feet.
Who lives in a house with one bedroom, 50 hallways, and ghosts lurking everywhere?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?