A request that you do something, but doing it is formed as a pseudo question--often by a figure of authority--that's really a statement. (BTW--requests from your girl/boy friend in such a manner don't count; that's called rhetoric).
Scene: in an all-department meeting; your name is Beauchamp
The requestion...
Your boss: Beauchamp, could you put together an outline of every promo event from last year by tomorrow?
An intentionally ambiguous adjective that appears to clarify whether or not something is required but results in confusion and the potential for an inappropriate result.