Premise: No, said Tuppence, rather embarrassed.

Hypothesis: Yes, declared Tuppence, feeling proud.
Answer: no

Premise: He has no technical knowledge, and is by nature unimaginative.

Hypothesis: So why should we think he came up with this fantastic scheme?
Answer: it is not possible to tell

Premise: Begun in 1514, it now houses the French Embassy.

Hypothesis: The French Embassy has been housed here since 1920.
Answer: it is not possible to tell

Premise: Fortunately none of them hit him.

Hypothesis: It wouldn't have been good if one of them had hit him.
Answer: yes