How are you loading the CGI module? It works fine for me with: use CGI qw(:standard);

use warnings;
use strict;
use CGI qw(:standard);
print start_form(-action=>'mail.pl'),
      table(
        Tr(
            td("Name"),
            td( textfield( -name => 'name') )
        ),
        Tr(
            td("age:"),
            td( textfield( -name => 'age') )
        ),
        Tr( td( submit('send') ), ),
        end_form,
      );
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