In sample question 5, there's no colon on line one ('class Lamp'), which is a syntax error:

      class Lamp
               ^
  SyntaxError: invalid syntax

The first part of the question is 'Will this program run without any errors?'.

Your answer says 'Both statements will be printed successfully.', but that is incorrect! Lexing will fail due to the syntax error, so the program won't run at all.

I just visited the page again. The error above (missing semi-colon) has now been fixed.

haha yeah that was a fail :D thanks for pointing it out!!