What you have learned from your mistakes?

You are bound to make mistakes on the job and the interviewer would like to know how you learn from them.
Most people don't intentionally go around making mistakes. The important thing is to admit it when you've made one, learn from it, and move on.
The important thing that you need to remember when answering this question is that the fact you made a mistake is not as important as the fact that you learned from it. You need to stay positive. Make sure that you speak confidently and although you do need to address the mistake, you do not need to dwell on it. Stick to the facts and only what is important. Do not waste words by explaining away the mistake or rationalizing it.