Well, the user can test the code before answer it?

The first question is trick. First doesn't make sence write it, since why add 3 to the 1 returned of the print if you aren't catching the print return?

And you should write:

  print ((2*3)+3) ; # if you want to print 9
  # or...
  $ret = (print(2*3)) + 3 ;
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I think that you can skeep this question, since you are testing a code that doesn't make sence! There's much better things that you can test. Like ask to make a simple OO module, make a tie object, and use DBI.

The other questions are fine.

Graciliano M. P.
"The creativity is the expression of the liberty".