The term 'Beats Me' is an expression used to indicate that one does not know the answer to a question. It can be expressed in many different ways, including 'SHRUG' (5 letters), 'Dunno' (5 letters), 'IDunno' (6 letters), 'NoIdea' (6 letters), 'IGiveUp' (7 letters), 'GoFigure' (8 letters), 'NotAClue' (8 letters), 'IDontKnow' (9 letters), 'IHaveNoIdea' (11 letters), 'ICantSayForSure' (15 letters), and 'IHaventGotAClue' (15 letters). All of these phrases are used to express confusion or lack of knowledge about a particular topic.