Hello!

I've always been confused about the use of questions marks. If you're asking a bunch of questions in one sentence, do you use a single question mark at the end of sentence? Or a question mark after each question? Even now, I don't know if I'm asking this question correctly.

Example:
"After a full day's work, Tina's payment was a measly $6.45. She grunted and tossed into her bag. What the hell was she supposed to buy with that? A hairbrush? A donut?"

OR
"After a full day's work, Tina's payment was a measly $6.45. She grunted and tossed into her bag. What the hell was she supposed to buy with that, a hairbrush, a donut?"



IS IT:

"Where do you work and what is your role?"
OR
"Where do you work? And what's your role?"



ONE LAST THING:
When asking a question in the middle of a paragraph, is it okay to do this:

"What time was it? I didn't even want to guess."

OR

Do you have to put the "I don't even want to guess" in a new paragraph? This is internal dialogue.



Thanks for reading.