some/any/no

[Penuel]

Hello!

Please help me to understand which is the correct answer and why:
1) Your face looks terribly familiar. Haven't I seen you ......... before?
I thought it should be ANYWHERE as it's a question, but the answer is SOMEWHERE.

2) It was Sunday, and the town was deserted. Nobody was in the streets, and ......... was open.
a) nowhere b) nothing
Is it possible to use both options in 2)?

Thanks a lot!

[Mister Micawber]

1) Your face looks terribly familiar. Haven't I seen you ......... before?
I thought it should be ANYWHERE as it's a question, but the answer is SOMEWHERE.-- Yes, because it is a positive assertion; the speaker thinks he has seen the face somewhere.

2) It was Sunday, and the town was deserted. Nobody was in the streets, and ......... was open.
a) nowhere b) nothing
Is it possible to use both options in 2)?-- No, not really. Nothing = no shops, etc.
_________________
Native English teacher at Mister Micawber's

[Penuel]

Thanks a lot dear Mr. Micawber!
And does the structure of question like above always mean a positive assertion?
Haven't I seen you somewhere before?
Didn't you get my point?
Aren't you hungry?

Thanks.

[Mister Micawber]

Haven't I seen you somewhere before?-- I think I have.
Didn't you get my point?-- You should have.
Aren't you hungry?-- I think you are.
_________________
Native English teacher at Mister Micawber's