Create a dumb DB with some data that is relevant to your business and see if they can filter out information that will be help them create a content strategy.
Example: 500 contacts with 3 products 250, 200 and 50, put them in different states and leave some state blank.
You can ask them to create a content strategy to move Product B users in certain state to try or buy your product.
Keep is to find out how they analysis the data and process the information.
Its a start you can ask way more detail questions, once they pass this stage.