How much toilet paper would you need to cover Texas? How many vacuum
cleaners are made a year? Can you swim faster in water or in syrup? How
would you weigh your head?
If your answer to these was, "who cares?" your chances of ever working
at Google, Microsoft, Wal-Mart, most of the Fortune 500, or,
increasingly, the corner shoe store, are slim. Offbeat, brain-teasing
questions are all the rage right now with interviewers.
So says science writer William Poundstone, author of the new book,
"Are you Smart Enough To Work At Google?"
Its daunting subtitle: "Trick Questions, Zen-like Riddles, Insanely
Difficult Puzzles, and Other Devious Interviewing Techniques You Need to
Know to Get a Job Anywhere in the New Economy."
Anywhere? Yes, pretty much, Poundstone tells ABC News. The reasons, he
says, are several. First, there are more people than there are jobs. A
potential employer can set the bar to entry high and still be assured of
a waiting room full of desperate souls. Second, "HR departments are
running scared, asking themselves 'How can we make sure our questions
have predictive power for how well someone will do on the job?'"
There's not absolute proof the new questions work, Poundstone says, but
there's abundant evidence (including a Harvard study) the old ones
don't: most hiring decisions, researchers have shown, have more to do
with an applicant's appearance or manner of speech than they do with his
or her intellect.
Many of Google's questions, says Poundstone, are intentionally
open-ended. Example: 'How would you devise an evacuation plan for San
Francisco?' In most instances, there is no single correct answer. The
interviewer's goal is to see how the thinking process of the applicant
works, and to gauge his or her creativity in problem-solving.
Google, asked for comment by ABC News, declined.
The book's most useful features include A Field Guide to Devious
Interview Questions, which divides questions into categories (e.g.,
classic logic puzzles, lateral thinking puzzles, insight questions,
tests of divergent thinking, etc.), then offers strategies and tips for
answering each type.
Another feature is useful whether you ever interview with Google or any
other employer: Salving a Doomed Interview offers advice for how to buy
yourself time to think and how to make a good impression on your
interviewer, whether you know the answer or not. You should, for
example, restate the question in your own words. Doing so earns you time
and confirms you understand what you're being asked.
Ask questions, Poundstone advises. "No matter what the question is, you
can ask for clarification," he writes, for example: "When you say I'm
swimming in syrup, do you mean a specific kind, like maple syrup, or any
liquid that's thicker than water?" Or: "Must the weight of my head
include my neck?"
The second half of the book gives answers to the teasers cited in the
first—although which of these you ever might be asked is tough to say:
Questions, Poundstone explains, have a shelf life of their own. Some
("Why are man hole covers round?") escape the shops of their creators
and become part of company or industry folklore, such that more and more
applicants come prepared to answer.
Interviewers at Google, for this reason, invest effort coming up with
ever-newer and more-devious questions. It's more valuable for the
applicant to understand the strategy for answering a given type of
question than to have a canned answer ready.