A pen name is a pseudonym -- a name that is used to protect the real author's identity. It can be used to avoid publicity or perhaps to go along with the story (e.g. Pseudonymous Bosch who wrote the "The Name of This Book is Secret" series).
So yes, any author can have a pen name.
One (and Anyone) is singular, so "I want to know if anyone has a pen?" is correct. The question would normally be: Does anyone have a pen? or Has anyone a pen?
that is her pen name. S.E. Hinton is her pen name.
The name for a feather pen is a Quill
no. It would be... "Has anyone got a pen?"
What is that ? What do you mean when you say "Having A Pen"? Since this was placed in the grammar topic, the best guess would be that the question is how to properly rewrite the question with correct grammar. Best guess for that would probably be: "Does anyone have a pen?"
pen name of juan Luna
There is no pen name of Ruskin Bond
George Gissing
Bhānusiṃha was his pen name
The pen name of Charles Lamb was Elia.
Her pen name was George Eliot.
The pen name of Emile Herzog was Andre Maurois