easy as falling off a log vs like shooting fish in a barrel

easy as falling off a log

adj

  • Very easy. 

like shooting fish in a barrel

prep

  • Extremely easy; sometimes with a connotation of triumph but at other times with a connotation of being meaningless and unsatisfying. 

How often have the words easy as falling off a log and like shooting fish in a barrel occurred in a corpus of books? (source: Google Ngram Viewer )