Queries other than CRUD operations

Hi, a project for using meaningful queries other than CRUD operations in MongoDB was assigned to my group. Would like to ask does aggregation, time analysis, machine learning, geospatial queries, or data visualization can be used for this?

Parts of the original description of the project:
**"Run at least four meaningful queries that are best describing the **
data inside the database. Meaningful queries exclude CRUD (Create, Read, Update, Delete)
**operations. Compare and discuss their performance in terms of ease of use, creating queries and **
data processing speed"

Thank you very much!