[euler] test problem solutions 20..29
[euler] test problem solutions 20..29

stmuk/perl6-examples,perl6/perl6-examples,stmuk/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,stmuk/perl6-examples,shlomif/perl6-examples,stmuk/perl6-examples,stmuk/perl6-examples,Quinny/perl6-examples,shlomif/perl6-examples,Quinny/perl6-examples,Quinny/perl6-examples,Quinny/perl6-examples,Quinny/perl6-examples,perl6/perl6-examples