You mean Dumbwaiters? Nawh, they just cut a a slit in your door. (Not that I've ever been to one or anything.)
elevators are related to math because elevators have numbers on them
Elevators Company in Ahmedabad
they have 2 elevators
10000 elevators in Chicago
There are 6,000 elevators in Italy
57 elevators and 8 escalators
Yes, children can use elevators.
There are quite a few metals that elevators are made out of. These elevators could be made out of stainless steel for example.
According to "The New Yorker," there are 58,000 elevators in New York City.
Rockefeller Center has a total of 66 elevators serving its various buildings and facilities. These elevators are designed to efficiently transport visitors and tenants throughout the complex. The elevators include both standard passenger elevators and freight elevators, ensuring smooth access to the diverse attractions and offices within the center.
No one answer, since there is more than one prison. In the US, generally yes. Not great food, but safe to eat.
In a prison food is cooked and made in the prison. Many even grow some things. A company wouldn't be needed.