It needs a mouth to speak at all, but it might give partial answers if it is missing something. Example, we ask a body how many guards are posted at the front gate it replies "... three" It tried to say twenty-three, but now we think there are only three guards and we can take them.<br/><br/>My point is all DMs are evil and will try and mess with us when using spells like this. So what do we want to ask? Remember this is a 3rd level spell which is the highest level I can cast, so I don't want it to be wasted.