You should think hard about how you can differentiate yourself from others -- every step of the way during the interview. Be memorable in a positive way even when answering these "boring questions." And, to be well-prepared to give smart answers to behavioral interview questions, read my article Smart Strategies to Answer to Behavioral Interview Questions
What They Want to Know: What do you do when things don’t go smoothly at work? How do you deal with difficult situations? The employer wants to know how you handle workplace stress. Avoid claiming that you never, or rarely, experience stress. Rather, formulate your answer in a way that acknowledges workplace stress and explains how you’ve overcome it, or even used it to your advantage.
Any candidate can read and regurgitate the company’s “About” page. So, when interviewers ask this, they aren't necessarily trying to gauge whether you understand the mission—they want to know whether you care about it. Start with one line that shows you understand the company's goals, using a couple key words and phrases from the website, but then go on to make it personal. Say, “I’m personally drawn to this mission because…” or “I really believe in this approach because…” and share a personal example or two.