Premise:
"Whittaker A Biography , by Sam Tanenhaus (Random House)."
Hypothesis: Sam Tanenhaus wrote a biography about another person.

yes

Premise:
"It fitted, and he opened the box, but after a moment's hesitation, closed and relocked it, and slipped the bunch of keys, as well as the key that had originally stood in the lock, into his own pocket. "
Hypothesis: He didn't anyone to know what was in the box.

it is not possible to tell

Premise:
"Other things she showed me had more beauty than I have ever known."
Hypothesis: She showed me around her country and I found new beauty in life.
it is not possible to tell