Problem: Here is a premise:
The competition be?tween shops is fierce, and many traders work on very narrow profit margins.

Here is a hypothesis:
There is no profit to be made in mercantile.

Here are the options:

Answer: no

Problem: Here is a premise:
But ropes are a major cause of death and injury in Fighters hyperextend their necks when they are punched against the ropes, because nothing stops their heads from snapping back.

Here is a hypothesis:
Fighters show a major cause of injury is whiplash from being punched against the ropes.

Here are the options:

Answer: yes

Problem: Here is a premise:
Thorn and the Kal helped spike the rivers.

Here is a hypothesis:
They weren't able to spike the rivers.

Here are the options:

Answer: no

Problem: Here is a premise:
The slums are eventually knock-ed down to make way for new tower-blocks a new suburb is created, yet another shanty-town springs up beyond it, and Istanbul spreads out a little farther.

Here is a hypothesis:
Istanbul has more suburbs than shanty towns.

Here are the options:

Answer:
it is not possible to tell