To upload an image to a question, please follow these steps:
Log In as an admin
Go to the Media plugin
Upload the image on the media plugin for your question
Save the image
Go to Questionnaire plugin
Click on ‘New questionnaire’
Enter your title for the questionnaire
Add question and enter the text
Select the ‘Landscape’ icon

Tip: Keep size around 150-450 px, so that image is not too big
Outcome: