please help me with these questions

[zoobinshid]

Hello my dear masters,
We have got a problem to ask a question to these sentence.Would you please tell as much questions as possible to these three answers?

A:...?
B:this is the third book that I have read!

A:...?
B:M.R Bush is the sixth president of the U.S.( JUST AN EXAMPLE )

A:...?
B:this is the forth car that I have bought.

Thanks in advance,

[Tdol]

How many books have you read this week?
How many cars have you owned/bought?

The second is tricky to come up with an exact question- a straight 'how many' doesn't require his name. You could say something like 'including Mr Bush, how many presidents have there been?'

[zoobinshid]

THANKS TDOL,
But that is not exactly what I wanted. so I set another example to clarify my question.
John has three cars .a BUICK , a BMW , and a CHEVROLETE .His friend Andy wants to find out the order by which he has bought the cars,specifically the BMW .
I want the question for which the answer is "the BMW is the second car I bought"

And the question I`m looking for is not the following questions.

1)Which car is the second car that you bought?
2)Is the BMW the second car you bought?

Thanks in advance,

[zoobinshid]

And by the way here is something that I heard last night IF it is right I think it can be the question to the answers.
Can we use how manieth in here?
A:How manieth car is the BMW?
B:The BMW is the second car I bought.

Thanks in advance

[zoobinshid]

And for the second answer the question would be:
How manieth president is M.R Bush?
Is that right?