"Do I have my mobile phone inside?"- Is this sentence correct? [closed]

Solution 1:

"Do I have my mobile phone inside the restroom?" or "Do I have my phone there(some place)?"--- One day I asked this question to my friend and he replied that the statement is not correct but didn't give me any reason and I couldn't find any proper justification online. I was confused as I just transformed the sentence "I have my mobile phone inside" into an interrogative one. Is it grammatically wrong?

Note that what follows is my answer but I have duplicated some of what was said in the comments.

You sentences are grammatically correct but they don't have a sensible meaning.

If you have your phone then you don't need to ask where it is because "have" implies that it is with you.

"I have my mobile phone inside." - If you have a phone inside then either you have it inside you (you have swallowed it) or you have it inside something you are carrying with you (inside a container).

A possible question is, "Is my mobile phone inside the restroom?"