- Making a function to provide outputs instead of printing within the function
- Using functions within another function (nested functions)
- About docstrings; their usecases and syntax
- Using functions with dictionaries to reduce redundancy
- Recursion with its use in a program
- A program to count the number of days in a month of a certain year (including leap years)
- A Calculator app that can do calculations repeatedly by remembering the last value, if necessary
and more..