I have used "list_questions" Api to get all questions by passing survey id. I also need sub-questions like a question is having sub-question like MCQ, free text etc. Please let me know the name of API in which I get sub-questions. Please refer the attachment. I need this response. I need to integrate this api in my C# project.

Looking forward for your response.

api.limesurvey.org/classes/remotecontrol..._question_properties

you have to send as the question settings param.
If you find out how to get their order please reply