In the manual 4.10 Customizing the list parameters page 40, it states
Thus, the default is that these commands have no effect, but you canchange any of them with a \renewcommand command.
For your question, you can add the following commands in the preamble
\renewcommand{\partshook}{%\settowidth{\leftmargin}{-1pt}\labelwidth\leftmargin\advance\labelwidth-\labelsep%}\renewcommand{\questionshook}{%\setlength{\leftmargin}{0pt}%\setlength{\labelwidth}{-\labelsep}%}The result is
Image may be NSFW.
Clik here to view.
I hope I understood your question correctly.
