For some searches, Bing search results include a related questions "People also ask" block. SerpApi is able to scrape, extract, and make sense of this information.
API Examples
JSON structure overview
{
...
"related_questions": [
{
"question": "String - Displayed question",
"snippet": "String - Snippet of the answer",
"title": "String - Title of the answer",
"link": "String - Link of the answer",
"displayed_link": "String - Displayed link of the answer"
},
...
],
...
}