(lxxxiii) stackoverflow perl report

This is the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2013-06-01 22:21:26 GMT

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1. What matches this regex: qr/(?!)/; - [11/3]
2. Strange perl code - looking for explanation - [9/1]
3. Perl - built-in function to "zipper" together two arrays? - [7/4]
4. Perl Moose attributes with minimum, maximum, and default value - [7/2]
5. Stripping everything except html tags using perl - [6/1]
6. About Perl range operator - [6/4]
7. Any way to find if two adjacent new lines start with certain words? - [6/5]
8. perl subroutine argument lists - "pass by alias"? - [4/2]
9. Find all strings in a file that are the same and print the value after in perl - [4/1]
10. Subroutine that returns hash - breaks it into separate variables - [4/5]