POSER
poser, stumper, toughie, sticker
(noun) a particularly difficult or baffling question or problem
model, poser
(noun) a person who poses for a photographer or painter or sculptor; “the president didn’t have time to be a model so the artist worked from photos”
poseur, poser
(noun) a person who habitually pretends to be something he is not
Source: WordNet® 3.1
Etymology
Noun
poser (plural posers)
(British) A particularly difficult question or puzzle.
Someone who asks a question or sets a problem.
Someone who, or something which, poses; a person who sets their body in a fixed position, such as for photography or painting.
(pejorative, slang) A poseur; someone who affects some behaviour, style, attitude or other condition, often to impress or influence others.
Anagrams
• OPers., Peros, Perso-, S'pore, Soper, Spero, opers, pores, preso, pro se, prose, reops, repos, ropes, soper, spore
Source: Wiktionary
Pos"er, n.
Definition: One who, or that which, puzzles; a difficult or inexplicable
question or fact. Bacon.
Source: Webster’s Unabridged Dictionary 1913 Edition