Write a story about a robot trying to blend in with medieval society.
Write a story about a mathematician who solves crimes.
Write a story based around a flower.
Quick, aliens are attacking! Write a story based on how you think you would react.
Find a random painting and write a story around it.
Write a story based around a social media post.
Take a random line from the closest book to you and turn it into a short story.
All of the trees in the world suddenly start producing carbon dioxide instead of oxygen. The world air supply begins to run low. Someone, somewhere has the solution. Write about What happens next.
Write about a world where dinosaurs still roam the Earth in 2020.