Delorean.
No.
The thing people used to hang others on was called a gallows.
A citation.
Sundials were a good thing 2 use!!
It's called Natron
It is called a metaphor.
A used thing is commonly referred to as "secondhand" or "pre-owned."
The word you are seeking is syringe.
It is called a guillotine.
A square.
The twisty thing on a safe is called a dial or combination lock. It is used to input the correct combination of numbers or symbols to unlock the safe.