For the first part of your question: 'Sen beni mi seviyorsun'? is right, though it has slightly another meaning. The 'mi' in your sentence is referring to 'beni' so it would mean: is it me you are loving?
The meaning of the sentence above is as you write: do you love me or not?
Why are the sentences always the same? No matter if I test for level one or five the same setences show up. Now I am testing for "legendary" level and this easy sentence comes up again. What is the point of different leves if even level legendary isn't harder then level one?