GwydapLlew said:
			
		
	
	
		
		
			She is preparing spells one day and looks up and says, "What does control water do?"
Our response, "It controls water."
		
		
	 
Reminds me of a friend I used to game with.  The party is getting it's butt handed to it, and the player of the cleric is kinda just standing there.
Players: "Do something! Cast a spell or hit something!"
Cleric: "I don't know what to do!  What spell should I cast?"
Players: "How about Slay Living."
Cleric: "I don't know what that does."
Players: "It 
slays the living!"
Or better yet, the same player had some of the strangest lines of questioning.  Like this gem:
Player: "Are they wearing pants?"
Other Players: "What?"
Player: "Well, they might be asian."
And there's two made famous by the player of the bard in the Planescape game I ran:
Player (asked whenever we encountered a foe, so that he could apply the appropriate modifiers from his +1 holy evil outsider bane bow): "Are they evil?  Are they an Outsider?  Are they an Evil Outsider?"
And the roleplay portion of his bluff check (check result = mid 40's) when trying to get in to see the Apothecary of Sin: "We need to get something apothecaried."