If your response to question two was "False," you chose to interpret the word "Congress" to refer to the President of the United States and the word "law" to refer to an executive order.
... has a faulty premise. The corresponding question:
_____ 2) The President may issue an executive order prohibiting public criticism of his administration.
suggests that it's within the power of the President's Executive Orders to forbid public speech. But except where pertaining to powers delegated to the Executive by the Constitution, Executive Orders have no force not already provided by laws passed by Congress, and Congress can't pass such a law.
The premise for question 4 is similarly faulty:
_____ 4) A federal statute may be passed prohibiting a citizen from falsely shouting "fire" in a crowded theater.
(and)
If your response to question four was "True," you have underscored your belief that the word "no" really means "some."
Instead of relaxing the meaning of "no" or "speech", we can instead come to the conclusion that you can't yell "fire!" or, for that matter, defraud people with radium tonics because it's illegal to knowingly and deliberately coerce people through deception; it's the action and its intent that's illegal, not the speech itself.