Meaning:Formal questions, mostly to people you don't know or to people in "power".
Form:It is still a question, but with extra words to be POLITE
Example:Can you tell me when we are going to watch Inside out 2?
I was wondering if you watched Inside out 2?
Could you tell...? I was wondering if... Can I ask...?
Can you tell...? Do you know...? Do you have any idea...?