Answer:
If you are unsure how to use one then just ask a flight attendant.
Used to keep prisoners silent and to make temporary repairs on cars.
A small hill with seven holes.
Sends paper without using the post office.
What gets broken if itβs not kept?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.