Seemingly random personality-test type questions like these come up in interviews generally because hiring managers want to see how you can think on your feet. There's no wrong answer here, but you'll immediately gain bonus points if your answer helps you share your strengths or personality or connect with the hiring manager. Pro tip: Come up with a stalling tactic to buy yourself some thinking time, such as saying, “Now, that is a great question. I think I would have to say… ”
Well, seriously, you might get asked brainteaser questions like these, especially in quantitative jobs. But remember that the interviewer doesn’t necessarily want an exact number—he wants to make sure that you understand what’s being asked of you, and that you can set into motion a systematic and logical way to respond. So, just take a deep breath, and start thinking through the math. (Yes, it’s OK to ask for a pen and paper!)

Questions to Ask During a Job Interview

OK, if you get the admittedly much tougher follow-up question as to why you were let go (and the truth isn't exactly pretty), your best bet is to be honest (the job-seeking world is small, after all). But it doesn't have to be a deal-breaker. Share how you’ve grown and how you approach your job and life now as a result. If you can position the learning experience as an advantage for this next job, even better.
When they ask “how did you hear about the position?”, the interviewer just wants to know if you’ve taken the time to research the company and if you have a genuine reason for wanting to talk with them. Mention a product, a mission statement on the website, a reputation for talented employees, or whatever else seems applicable to that specific company. Come up with a great reason. Don’t make it seem like they’re just one company among many. Or that you’re sending your resume out to them for no particular reason other than wanting a job.
Rarely do candidates come to the end of an interview feeling they've done their best. Maybe the conversation went in an unexpected direction. Maybe the interviewer focused on one aspect of their skills and totally ignored other key attributes. Or maybe candidates started the interview nervous and hesitant, and now wish they could go back and better describe their qualifications and experience.

Interview Questions Which Animal Would You Be?

What They Want to Know: This question gives you an opportunity to show the interviewer what you know about the job and the company, so take time beforehand to thoroughly research the company, its products, services, culture and mission. Be specific about what makes you a good fit for this role, and mention aspects of the company and position that appeal to you most.
DON’T say a number. Why? you have the least amount of leverage possible at this point, assuming you’re early in the interview process. You haven’t finished interviewing with them, they don’t know if you’re any good or if they even want to hire you. So you can’t command a high salary right now. If you go too low with your price, they’ll hold you to it later. Go too high? You’ll scare them off before they even know what you’re worth!
If you were unemployed for a period of time, be direct and to the point about what you’ve been up to (and hopefully, that’s a litany of impressive volunteer and other mind-enriching activities, like blogging or taking classes). Then, steer the conversation toward how you will do the job and contribute to the organization: “I decided to take a break at the time, but today I’m ready to contribute to this organization in the following ways.”
What They Want to Know: The interviewer wants to know why you're an excellent fit for the job. Try to answer questions about yourself without giving too much, or too little, personal information. You can start by sharing some of your personal interests and experiences that don't relate directly to work, such as a favorite hobby or a brief account of where you grew up, your education and what motivates you. You can even share some fun facts and showcase your personality to make the interview a little more interesting.