well if you were saying "where is its bed" there wouldn't be an apostrophe because it doesn't mean "it is" but if you were saying "it's not supposed to be there" then it would because it is saying "it is not supposed to be there".
you use i because you just aked a question saying do I use me or i. So you use i.
It really depends on the context of your question. You can use it anywhere.
I never question my authorities.
You just used it in a question.
You can do this when you are shouting your question.
answer my question answer my question
the First Amendment
it has to be able to be proven and use a question
you use which when you want to ask a question like (which one do you want?) and what when you want to ask a question like (whats your name) :p
You should use did.
When is breakfast?
A question mark is used at the end of a sentence to indicate that it is a question. It helps to clarify that the sentence is seeking information or prompting a response from the reader.