How can I get the most out of Siri?

Question

I searched for a Discussion where folks shared ways they have discovered to get Siri to provide information and functionalities of value.  Maybe such a discussion is out there, but I couldn't find it...at least not at the level I wanted and not in the Apple Support Community.  I apologize if I missed it.  Just let me know.
Here is what prompted this.  Our family was traveling up the east coast recently.  A lot of interstate driving.  A lot of "Dad, I have to go to the bathroom...BAD!"  I thought I had the solution to these emergencies with my iPhone 4S and Siri.
Question Attempt 1:  "Siri, where is the next Rest Stop?"
Answer:  "I don't know.  Good luck."  (Or, something like that.)
Question Attempt 2:  "Siri, where is the next Service Area?"
Answer:  "I still don't know."  (Or, something like that.)
Question Attempt 3:  "Siri, where is the next Service Area on the New Jersey Turnpike?"
Answer:  "If I've told you once, I've told you a thousand times, I have no clue."  (Or, something like that.)
Question Attempt 4:  "Siri, where is the nearest Burger King restaurant?"  (I knew all the Service Areas on the NJ Turnpike had Burger King Restaurants.  I thought this was a clever way to get Siri to spill the beans.)
Answer:  "Here is a list of the nearest Burger King restaurants."  (Siri provided a list of Burger Kings.  All required getting off the interstate.  None were closer than 15 miles away.  None were located in Service/Rest Areas.)
I mile later, we passed a Rest Stop on the NJ Turnpike!  It even had a Burger King.  OMG!  Was Siri on drugs or something?
So, that's an example where either Siri's functionality clearly was lacking, or I simply did not know the way to ask the question to get the information I needed.  That's what I'm hoping this discussion will provide.  Ways to get Siri to do the things it can do, and provide information it can provide.
BTW, we tried this Rest Stop game from North Carolina to New York on several interstates.  Struck out everytime.
On the other hand, if a plane flew overhead we had no trouble getting Siri to tell us what flight it was.  "Wolfram Alpha, what plane is flying overhead right now?"  Worked every time.  Go figure.

Answer 1

Dear fromsouth,
Oh dear...I had no intention of being disrespectful.  However, as I look back at my language used in responding to you, I now see how you could have interpreted things that way .  I am a physicist and have not taken a course in writing since a junior in high school.  Let me say I am well beyond high school age at this point.  That lack of writing skill can haunt me, as it has done here.
So, before I say anything, please forgive my choice of language in responding to you.  I DO appreciate very much folks who respond to questions I ask on this forum.  It takes time and thought.  Those are gifts.  Thank you very much, SINCERELY, for taking the time and thought to respond to my question.
I too do not know how Siri works.  I was throwing out well intentioned, but poorly worded, questions and hypothesis in response to your post.  You are right, 10 seconds is not a lot of time.  We can only guess at what magic Siri is performing during that 10 seconds.
Moving back to the beginnings of things, I still think that there may be ways to word questions to Siri to squeeze answers out of her that would normally produce, "I do not know" responses.
For example, as I mentioned above, I read elsewhere that if you ask Siri, "Wolfram Alpha, what plane is flying overhead?" you can get Siri to tell you the airline, flight number, altitude, etc. of that plane.  Who would have guessed that!?  (Even though Wolfram Alpha is quite a "smart" fellow himself. :-))
You ABSOLUTELY did not waste my time.  Your post made me think.  I appreciate that.
My Bad.  Please accept my apologies and have a Wonderful Holiday season.
Mr. Luigi