I can’t help you with this question, as you have to list your own personal interests and skills. However, I can make an example. For me, an interest of mine is water. I love to have fun swimming and diving. One of my skills is swimming competitively. These overlap each other because I love swimming, so I learned to swim and joined a team. Another example may be that I like to draw as my interest. My skill is that I am very creative, so they overlap because I am creative, so I am good at being creative with my art.
Answer: To be able to receive the Federal Student Aid, you have to enter your Social Security Number. By doing this the Government can cross the data to certify you are eligible to this Federal Aid.