How do you picture?

Are the following question and answer natural? Do both questions and answers mean the same thing?

1 How would you picture her husband?

1 I don't know how I picture her husband

2 What do you think her husband looks like?

2 I don’t know what her husband looks like

What would be the question to the following answer?

- I have no clue what he looks like.

Could this be the answer to the question?

2 What do you think her husband looks like?

2 I don’t know what her husband looks like

Or should the question be “Do you know what her husband looks like?”

Thanks