Solution
Well-defined problems have clear goals, inputs, processes, and outputs. For instance, determining if a number is even is well-defined: the goal is to decide if the number is even, the input is a single integer, the process is to check if the number is divisible by , and the output is even or odd.
Ill-defined problems lack clear definitions or may have ambiguous goals and requirements. For instance, a project aimed at "How to reduce poverty in Pakistan" is vague and broad, so the goals, inputs, process, and expected output are not clearly specified.