Answer:
What type of house weighs the least?
What has a head yet it never weeps, has a bed but never sleeps, can run but can not walks, and has a bank but not a cent to its name?
If you can get this professional's attention you can get where you need to go for a price.
Watches students at the prom to make sure there's no funny business.
I start in little but I end in full, you'll find me in half and complete.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?