Sometimes people don't want to give full answer. And they use words: да разные, многие, много чего, любые.
It's easier = one word instead a list of something.
But people use this:
1. When they have time limit. They want to give an answer but they have not enough time for this.
2. When they don't want to give an answer. In this case answers like да разные, разные, любые etc will repeat. And if you still want to take an answer, people who respond may use: да ладно, зачем тебе? Это не важно.