Premise: Yes, but who?

Hypothesis: Sure, but who?
Answer: yes

Premise: I became really ill for months I sank into a sort of stupor.

Hypothesis: I was unwell for months
Answer: yes

Premise: This town is famous for the erotic sculptures of its medieval Hindu temples; many come expecting to snigger.

Hypothesis: The erotic sculptures were not originally intended for satire, but has turned to such.
Answer: it is not possible to tell

Premise: Plain coco?"

Hypothesis: Crazy coffee!
Answer: no