# untested
use strict;

my %questions = (
  1 => { question => "Who's Perl's top dog?",
         answer => "Larry Wall" },
  2 => { question => "What's the answer?",
         answer => "42" },
);

foreach my $question (sort {$a <=> $b} keys %questions) {
  my $guess = param("$Q$question");
  print "$question). You answered: $questions{$question}{question} with $guess. ";
  if ($guess eq $questions{$question}{answer}) {
    print q|<font color="green">Correct</font><br>|;
  } else {
    print q|<font color="red">Incorrect</font><br>|;
  }
}

# keeping totals left as homework =)