poser

Definition of Poser in English :

1. poser, poseur

a person who habitually pretends to be something he is not

2. model, poser

a person who poses for a photographer or painter or sculptor

Example Sentences:
'the president didn't have time to be a model so the artist worked from photos'

a particularly difficult or baffling question or problem

WordNet Lexical Database for English. Princeton University. 2010.

Poser

noun

1.

a person who poses

2. informal

a person who likes to be seen in trendsetting clothes in fashionable bars, discos, etc

noun

a baffling or insoluble question

noun

a baffling question or problem

noun

a person who poses; esp., a poseur

n.

1. One who poses.

2. A poseur.

n.

A baffling question or problem.