hay ride vs no-brainer

hay ride

noun
  • Any easy task. 

  • A leisurely ride in an open cart filled with hay throughout a scenic area. 

no-brainer

noun
  • An easy or obvious conclusion, decision, solution, task, etc.; something requiring little or no thought. 

How often have the words hay ride and no-brainer occurred in a corpus of books? (source: Google Ngram Viewer )