Crossword clues for the word: WHOSONFIRST The word WHOSONFIRST has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for WHOSONFIRST Showing 1 to 10 of 10 results Clue(s) """Time"" Best Comedy Sketch of the 20th Century" A question for Bud Abbott? Abbott and Costello routine. Abbott and Costello's baseball classic Abbott and Costellos classic line Classic Abbott and Costello routine Classic baseball comedy routine Classic routine Costello's query Routine question?