Premise:
"Then he became conscious that the pause was too lengthy, and he replied with a hurry he immediately regretted: "No hard feelin's."This time he was able to recognize the meaning of that quirk of Shannon's lips."
Hypothesis: Shannon's lips quirked.

yes

Premise:
"Her memories stretch back over one hundred years."
Hypothesis: She remembers the terrible events of the past century.

it is not possible to tell

Premise:
"But while creativity may exist, it doesn't necessarily exist over and over again."
Hypothesis: Creativity exists over and over again throughout time.
no