I need a MongoDB expert for involving map reduce and aggregate

I have the database and collections created but I need help with some queries.

Need to use version 4.4 as version 5 does not support full map reduce capabilities.

And we need to use, pretty in the queries to get a decent looking output format.

You can use mongodb compass for querying and test.

I have 11 queries, did the first 4 queries, so you will do the other 7 queries.

thanks.