Historical clue formulations

• Who, What or I Don't Know, to Abbott and Costello — 2025-07-09
• Word with second or third, but not fourth or fifth — 2020-04-16
• One in the infield — 2007-10-16
• One left holding the bag? — 1996-09-28
• One who's left holding the bag? — 1994-02-17