use List::Util qw( shuffle );

my @data = map { [$_, undef] } qw( v1 v2 v3 v4 v5 );

my @shuf = shuffle 0..$#data;

my @tab = map { [$data[$_][0], $shuf[$_]] } 0..$#data;

use Data::Dumper;
print Data::Dumper->Dump([\@data, \@tab], [qw(*data *tab)]);