Definition of poses:
(v) :
(transitive) To place in an attitude or fixed position, for the sake of effect.
(v) :
(transitive) To constitute (a danger, a threat, a risk, etc.).
(v) :
(transitive) To ask; to set (a test, quiz, riddle, etc.).
(v) :
(intransitive) To assume or maintain a pose; to strike an attitude.
(v) :
(intransitive) To behave affectedly in order to attract interest or admiration.
(v) :
(transitive, in the phrase "to pose as") To falsely impersonate (another person or occupation) primarily for the purpose of accomplishing something or reaching a goal.