Premise:
"A cold hand seemed to close round her heart ."
Hypothesis: Her heart felt like it was wrapped in a chilly hand.

yes

Premise:
"than had been available before"
Hypothesis: It's a good thing compared to how things were before.

it is not possible to tell

Premise:
"To make sure the message is clear, Paris offers golden nighttime illumination of its major historical buildings."
Hypothesis: Paris makes their landmarks really stand out to show what a special city it is.
it is not possible to tell