Given the sentence "A group of people wearing sweaters at a cafe." is it true that "People gathered at a cafe."?

yes
Explanation: People wearing sweaters at a cafe implies that they gathered there..

Premise: "A man doing a skate trick on a metal railing."
Hypothesis: "A man riding up a halfpipe."
Do we know that the hypothesis entailed by the premise?

no
Explanation: A metal railing and a half-pipe are not the same thing..

Given the sentence "People gathering at the front of the temple before they go to meditate." is it true that "Many people gather near the temple stairs."?

it is not possible to tell
Explanation: People gathering at the front of the temple are not necessarily near the temple stairs..

Premise: "Footballers in red lining up for a penalty shot to protect the goal."
Hypothesis: "The men are almost finished playing the game."
Do we know that the hypothesis entailed by the premise?
it is not possible to tell
Explanation: The game almost finished can not be determined by a penalty shot..