Meaning of the word poser in English

What does poser mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

poser

US /ˈpoʊ.zɚ/
UK /ˈpəʊ.zər/

Noun

a problem or question that is difficult to solve or answer:

Example:
Who was the last woman to win three Olympic gold medals? That's quite a poser.