EXAMPLES OF PROBLEMS OR QUESTIONS:
17) How to make a Search program for the payroll which becomes for anything else (search engine building block)
18) What are the programming mysteries?
19) Change the program to do something else by simply changing the names and the operations (magical part).
20) What is virus and how your program becomes a virus and how to identify a virus?
21) How a program is used for hacking and how to identify a hacking program?
22) How would you make a smart App with what you just learned and with your own innovations?