Question about questions

[Webshark]

I've come across this a number of times and I'm curious to know the correct answer. If you ask a question, without really asking a question by using words such as "I was wondering" or "I'm guessing", is it still considered a question?

Let me give an example:

I was wondering if you think I should get a hair cut? <-- Should this be a question mark or a period? Is this really a question or a statement?

If it were written like this:

Do you think I should get a hair cut? It is definitely a question. But, when you write something in a more passive manner is it still considered a question, or not?

Let me give one more example:

I'm assuming you want to get some pizza. <-- Again, I think this would be a statement rather than a question, but you're basically asking, "Do you want to get some pizza?" So, which is it?

Thanks.

[Mordant]

Only the second is a question, although all three intend to prompt a response. As 1 and 3 are both indicative, they should be punctuated accordingly.

I cannot conceive of a situation where the second isn't a question. I don't think "passiveness" at all applies.

Rhetorical questions, those that seek no response and are often used for effect, can be punctuated with periods.

Should we place our children in the hands of arrant incompetents?
Should we place our children in the hands of arrant incompetents.

Often they are exaggerated questions that all but compel agreement with the speaker. (And, for that very reason, they are just as often ineffective.)

Sometimes questions are worded like statements in dialogue, especially to express surprise or doubt.

You've never lied before, Alex?
Wow, you bought me a car?

The first sentence suggests Alex has claimed never to have lied before.

I've pointed this out before, but grammar aside, something apart from an interrogative sentence can be a question. Someone asked whether Shakespeare misused "question" when he presented the famous "to be or not to be" dilemma. It can be a choice between difficult options or something warranting relatively serious consideration.

The question before us is whether to seek war today to ensure peace tomorrow.
The question we eternally consider is whether to side with order or liberty where they conflict.

[Webshark]

Sorry, I wasn't clear in my first post. I was saying that the second one was the only one I knew to definitely be a question. The question about using a more passive manner was directed at the first one.

Thanks for the reply, this really clears up a lot for me.