Since the internet is a stateless environment, you need some way of maintaining state.

The options I see for you are:

1. Pass all answers through the whole app, using hidden fields.
2. Drop a cookie with some sort of ID, and write the results to a text file/database. Then retrieve the data based on ID on the 3rd page.

I prefer the second option, but both should work for a relatively small application like this.

Also, a side note, instead of

    my $who = param("firstname");
    my $who2 = param("lastname");
    my $email = param("email");
    my $firstquestion = param("FirstQuestion");
    my $secondquestion = param("SecondQuestion");
    my $thirdquestion = param("ThirdQuestion");
    my $fourthquestion = param("FourthQuestion");
    my $fifthquestion = param("FifthQuestion");
    my $answerfirstquestion = param("AnswerFirstQuestion");
    my $answersecondquestion = param("AnswerSecondQuestion");
    my $answerthirdquestion = param("AnswerThirdQuestion");
    my $answerfourthquestion = param("AnswerFourthQuestion");
    my $answerfifthquestion = param("AnswerFifthQuestion");
    my $useranswerfirstquestion = param("UserAnswerFirstQuestion");
    my $useranswersecondquestion = param("UserAnswerSecondQuestion");
    my $useranswerthirdquestion = param("UserAnswerThirdQuestion");
    my $useranswerfourthquestion = param("UserAnswerFourthQuestion");
    my $useranswerfifthquestion = param("UserAnswerFifthQuestion");
    my $choicesfirstquestion = param("ChoicesFirstQuestion");
    my $choicessecondquestion = param("ChoicesSecondQuestion");
    my $choicesthirdquestion = param("ChoicesThirdQuestion");
    my $choicesfourthquestion = param("ChoicesFourthQuestion");
    my $choicesfifthquestion = param("ChoicesFifthQuestion");
[download]

You could use

my %cgi_data = Vars(); #Vars() is imported from CGI.pm
[download]

I just think it looks a lot cleaner. It also would allow you to simplify your form output using a loop.

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