poser🔊

(difficult question or puzzle) (British) A particularly difficult question or puzzle.

(someone who poses a question) Someone who asks a question or sets a problem.

(someone who strikes poses physically) Someone who, or something which, poses; a person who sets their body in a fixed position, such as for photography or painting.

(poseur) (slang) A poseur; someone who affects some behaviour, style, attitude or other condition, often to impress or influence others.