The biggest question when it comes to retirement is also one that can be difficult to answer: how long will you live? This question, and the assumptions that people make when answering it, influences ...

Forbes contributors publish independent expert analyses and insights. Jack Kelly covers career growth, job market and workplace trends.

You can prepare all you want for a job interview, but still be asked a curveball question that leaves you stumped for how to answer. Should you say “I don’t know” when you actually don’t know? The ...