Adding questions to your story is an exciting feature of Facebook, enhancing interaction among you and your friends.

1. Adding Questions to Your Story
Creating a story to answer questions on Facebook stories is quite straightforward. Simply select a photo/video as usual, then add the sticker 'Question'. Viewers of your story can help answer that question.
Step 1: Open the Facebook app on your phone and tap Create Post.

Step 2: Choose the photo you want to post to your story.

Step 3: To add a question to your story, select Stickers >> Question.

Step 4: Enter your question in the blank field and then tap Done.

Step 5: You can zoom in/out and move the question frame to any position on the photo. Once done, press Share to post to your story.

2. Answering Questions on Facebook Stories
Step 1: Open the Facebook app on your iPhone or Android device >> tap on a friend's story.

Step 2: Tap Answer this question then enter your answer. After that, tap Send. The story poster will receive your response immediately.

3. View the Answers You've Received
If you're the one who asked the question, you can check the answers by returning to the story.
Step 1: On the home page, tap on the Question Story you posted on Facebook. This story will appear at the very top.

Step 2: Tap on the text “X people viewed” in the bottom left corner.

Step 3: Here, you'll see the responses you've received from friends. To reply, tap Reply.

Step 4: Choose Send Message or Share to Story.
If you select Share to Story, you'll be taken to the story creation screen with the response from that friend embedded.

Conclusion
Here is a guide from Mytour about the intriguing Question feature on Facebook stories. Use this feature to seek opinions from friends whenever you're uncertain about something!