Ladies and gentlemen, there is a sharpshooter in the house.
A questioning assumption? Come on.
To re-iterate, you pose a question and posit an assumption.
To pose means to present for consideration.
To posit means that the following assumption will be used as a starting point for the argument, and the assumption posited will be assumed to be true for the purposes of the current argument. (see definitions 2 and 3)
Main Entry: pos·it
Pronunciation: 'pä-z&t
Function: transitive verb
Inflected Form(s): pos·it·ed /'pä-z&-t&d, 'päz-t&d/; pos·it·ing /'pä-z&-ti[ng], 'päz-ti[ng]/
Etymology: Latin positus, past participle of ponere
Date: 1647
1 : to dispose or set firmly : FIX
2 : to assume or affirm the existence of : POSTULATE
3 : to propose as an explanation : SUGGEST
Main Entry: 1pose
Pronunciation: 'pOz
Function: verb
Inflected Form(s): posed; pos·ing
Etymology: Middle English, from Middle French poser, from (assumed) Vulgar Latin pausare, from Late Latin, to stop, rest, pause, from Latin pausa pause
Date: 14th century
transitive senses
1 a : to present for attention or consideration "Let me pose a question." b : to put or set forth : OFFER
2 a : to put or set in place b : to place (as a model) in a studied attitude
intransitive senses
1 : to assume a posture or attitude usually for artistic purposes
2 : to affect an attitude or character usually to deceive or impress