[Freesurfer] vertex number to MNI coordinates

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Dear Freesurfer experts,

I hope you can help me with the following questions:

1. What is the best way to know the MNI coordinates to which a vertex of a surface corresponds?

2. I have projected the surfaces of the subjects onto the average subject from this dataset. Can I know the MNI coordinates corresponding to a vertex of the average subject of my dataset? Or do I need to project it onto the fsaverage to know the correspondence to de MNI space?

3. I know that the average surface is constructed by computing the MNI305 coordinate at each vertex, But how can I obtain the MNI152 coordinates (instead of MNI305) to which a vertex corresponds? (if it is possible).

Thank you very much in advance.

Best regards, Marina