1. Write code to test whether a number is prime. 2. Write code to convert all uppercase letters to lowercase letters (you can't use any built in functions). 3. You are given system xyz, what information is needed to perform testing? 4. When do you know when enough testing has been accomplished? 5. Design a server that has to take a fair number of requests. What about if you don’t know how many requests you will be taking? What if the requests had different priorities?