Just one of those question that I want to answer well without making myself look bad.
Giving answers that you think a potential employer would like such as "I work too hard" can come off as non-genuine. Instead, choose weaknesses that show that you are self aware and explain how you are working on them. For example you might say "I am still working on my presentation skills. I get nervous speaking in public, so I make sure to participate in the office if there's an opportunity to share my work or present an idea." A bonus answer might be: "I'm also taking a public speaking course" to show that you are doing more outside of work to improve your skills.