Here is my entry in the Golf game, but with some additions that may throw me off the tour. I made two data structures @a for animals and @q for questions. I then update these inside of the allowed subs that are/were outlined in the rules. With that said I am at ~111 characters in my do_it sub.

my @q = ( 'Is your animal larger then a bread box', 
          'Is your animal taller then a car' );
my @a = ( 'dog' );
sub a {
    print shift, "?\n";
    my $a = <>;
    return 1 if $a =~ /y/i;
}

sub g {
    print 'I think your animal is a ', shift , ", am I right?\n";
    my $a = <>;
    return 1 if $a =~ /y/i;
}

sub t {
    my $q = shift;
    print "What was your animal?\n";
    my $a = <>;
    chomp $a;
    push @a , $a;
    return $a;
}

sub i {
    my ($u,$g) = @_;
    print "What is a question that is true for $u, but false for $g?\n
+";
    my $answer = <STDIN>;
    chomp $answer;
    push @q , $answer;
    return $answer;
}

sub w {
    print "Do you want to conitue?\n";
    my $a = <>;
    if ($a =~ /n/i) {
        die "Thanks for playing\n";
    };
    do_it();
}



sub do_it{
for$s(@a){$g=$s;for$q(@q){if(a($q)){$g=$r{$q}||$s}}
if(g($g)){w()}else{$t=t();$i=i($t,$g);$r{$i}=$t;do_it()}}}
&do_it();

1;
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