yes.
yes
In a person's imagination, anything may exist.
To perceive means to notice that a thing or person exist; or perhaps, simply, to see.
no, not a person in the universe
I doubt it. How does a person contact this agency IF it does exist?
no the person that wrote it was bored
Normally an Athiest.
The only person that should answer that is yourself.
There is no such person: she or he does not seem to exist.
no, god does not exist so how can nothing be the best person
It is spread from person to person. It can occur in any environment.
It will vary from person to person, but essentially the technology does not exist at this time to determine an exact number.