Write code for the following with comments.
I need this done in 15 minutes.
1. Write Python code which sorts a list of 5 strings by increasing length.
2. Write Python code which Sort a list of 5 strings by increasing length, and so that strings of the same length are sorted lexicographically.
3. Write a program that sorts a list of Country objects in decreasing order so that the most populous country is at the beginning of the list.