sub hole_one{(pop=~/\w+/g)[4]}
#16 characters

hole two:
perl -e "print STDERR 'Can\'t find label TPC at -e line 5.'"
#60 characters (using tachyon's method)

sub hole_three{pop=~/^(.*?)\1+$/s}
#18 characters (handles carriage returns in the input)

sub hole_four{map{chr hex}(pop=~/(..)/g)}
#26 characters

sub hole_five{$a=pop;(grep{$a=$_ if $_>$a}@_)[-1]}
#35 characters (updated for negetive numbers)

sub hole_six{sort{($a=~/([aeiou])/)[0]cmp($b=~//)[0]}@_} 
#42 characters

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In reply to Re: PGA Golf, Round 1 by iamcal
in thread PGA Golf, Round 1 by jmcnamara

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