No longer satisfied with screening applicants the traditional way, some companies are using offbeat interview techniques to test job seekers. Zappos.com chief Tony Hsieh likes to ask potential hires, “On a scale of 1 to 10, how weird are you?” Skills, education and good references are still important, but firms increasingly want a real-time look at how prospects tackle problems, gin up new ideas, handle change and work as part of a team.