(l) stackoverflow perl report

This is the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2012-10-14 05:57:11 GMT

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1. Why does Perl's string multiplication not warn on undef? - [18/1]
2. text processing - python vs perl performance - [12/6]
3. Is there still unpredictable behavior with glob() in perl? - [6/1]
4. Perl: function returns reference or copy? - [6/4]
5. Is there an "undefined but true" value analogous to "0 but true"? - [5/4]
6. Playing Sound in Perl script - [5/1]
7. meaning of a regexp if ($_ =~ /-\n/) - [5/3]
8. How can I print the elements of an array repeated twice each side-by-side? - [5/1]
9. Get regions from a file that are part of regions in other file (Without loops) - [5/4]
10. Why is this regex not greedy? - [5/4]