Premise: There are kiddie pools and knee-buckling water slides.

Hypothesis: All of the water slides are considered to be frightening.
Answer: it is not possible to tell

Premise: Who calls? he asked in an uninflected, hollow voice.

Hypothesis: He asked who was there with a hollow voice.
Answer: yes

Premise: a therapist for Rossa it's a Christian treatment organization

Hypothesis: There is a Christian treatment organization called A Therapist for Rossa.
Answer: yes

Premise: Am I right in thinking that the joint venture has ended in success, and that this he turned to the girl on the couch "is Miss Jane Finn?" Jane sat up.

Hypothesis: Am I correct in assuming that the partnership was a complete failure?
Answer: no