You need to chomp your input to get rid of the newline: 
print "Who's number are you looking for? : \n"; 
my $who = <STDIN>; 
chomp $who;
print "$who number is $numbers{$who}\n";

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Code look much better if you wrap it in <code> ... </code> tags :-)

In reply to Re: user defined variable as hash key index by FunkyMonk
in thread user defined variable as hash key index by pleasehelp

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