What's the answer to "Is there anyone here?" ?
My teacher said that the answer could be "No, there's no one." or "No, there's none." But I cannot understand. I'd like to know what native speakers would say in this case. (*^__^*)

Question

Answer

I would say "No, there's no one there."

Answer

"No, there is no one here."
"Yes, there is someone here."
 
or simply:
"Yes." 
"No."

Other Possible Responses:
"Maybe."
"There might be."
"I don't know."
"I'm not for sure."
There is a lot of different ways that you could respond to this question.