Sentence 1: Suppose they should find her dead stricken down by the hand of Mr. Brown?

Sentence 2: What if Mr. Brown kills her?
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: In summary, the total time needed to complete the design, installation, and testing at a typical 500 MWe facility with one FGD unit is 27 months, 32 months at a facility with two boilers being served by a single absorber module, and approximately 36 months at a facility with three absorber modules (six boiler units).

Sentence 2: To summarize, it took 27 months to complete the design in that particular way- otherwise 36.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: You yourself did not happen to notice, madame, when you entered Mrs. Inglethorp's room, whether that door was bolted or not?

Sentence 2: Mrs. Inglethrop's room is always locked.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell