Skip to content
Support Us

We need your help now

Support from readers like you keeps The Journal open.

You are visiting us because we have something you value. Independent, unbiased news that tells the truth. Advertising revenue goes some way to support our mission, but this year it has not been enough.

If you've seen value in our reporting, please contribute what you can, so we can continue to produce accurate and meaningful journalism. For everyone who needs it.

"I can't believe they asked me that" Facepalming statue via Shutterstock

Google says its bizarre interview questions were 'a complete waste of time'

“They don’t predict anything. They serve primarily to make the interviewer feel smart.”

IF YOU HAVE ever experienced a job interview with Google, or just read about what applicants have to go through, you know it can be gruelling.

Until a few years ago, Google was infamous for asking brainteasers such as, “How much should you charge to wash all the windows in Seattle?” and “Why are manholes round?” It now admits that those questions were useless.

“We found that brainteasers are a complete waste of time,” Laszlo Bock, Google’s Senior Vice President of People Operations, tells The New York Times. “How many golf balls can you fit into an airplane? How many gas stations in Manhattan? A complete waste of time. They don’t predict anything. They serve primarily to make the interviewer feel smart.”

In addition to trashing brainteasers, Google is also moving away from set requirements based on the grades people received in third level education. Bock says there is a correlation between good employees and high GPAs and test scores if you’re just a few years out of school. But for every other candidate, Google no longer asks for that information.

What’s Google’s hiring tactic now? Bock says his team uses behavioral interviews and asks for examples of how a person acted in a particular situation. It no longer asks hypothetical questions. Google also uses structured behavior interviews with a consistent rubric for assessing each person.

“The interesting thing about the behavioral interview is that when you ask somebody to speak to their own experience, and you drill into that, you get two kinds of information,” Bock says. “One is you get to see how they actually interacted in a real-world situation, and the valuable “meta” information you get about the candidate is a sense of what they consider to be difficult.”

Google also looks for leadership examples among candidates.

Here’s some examples of the type of questions Google used to ask

  • Design an evacuation plan for a major city
  • How many piano turners are there in the entire world?
  • How many times a day does a clock’s hands overlap?
  • A man pushed his car to a hotel and lost his fortune. What happened?
  • You need to check that your friend, Bob, has your correct phone number but you cannot ask him directly. You must write the question on a card and give it to Eve who will take the card to Bob and return the answer to you. What must you write on the card, besides the question, to ensure Bob can encode the message so that Eve cannot read your phone number?
  • You have eight balls all of the same size. Seven of them weight the same, and one of them weighs slightly more. How can you find the ball that is heavier by using a balance and only two weighings?
  • You are shrunk to the height of a coin and your mass is proportionally reduced so as to maintain your original density. You are then thrown into an empty glass blender. The blades will start moving in 60 seconds. What do you do?

Read: Now you can take videos on Instagram >

Read: Google boss defends Ireland’s corporate tax rate >

Read: Living in a remote part of the world? Google wants to get internet access to you with balloons >

Readers like you are keeping these stories free for everyone...
A mix of advertising and supporting contributions helps keep paywalls away from valuable information like this article. Over 5,000 readers like you have already stepped up and support us with a monthly payment or a once-off donation.

Published with permission from
View 45 comments
Close
45 Comments
    Install the app to use these features.
    Mute Dublinguy2013
    Favourite Dublinguy2013
    Report
    Jun 22nd 2013, 5:41 PM

    We should ask Google how much Corporation Tax they pay in Ireland. That would stump them.

    198
    Install the app to use these features.
    Mute Simon
    Favourite Simon
    Report
    Jun 22nd 2013, 5:44 PM

    Or how many people they employ?

    167
    Install the app to use these features.
    Mute Joan Featherstone
    Favourite Joan Featherstone
    Report
    Jun 22nd 2013, 5:44 PM

    Very good!

    37
    Install the app to use these features.
    Mute Andrew Telford
    Favourite Andrew Telford
    Report
    Jun 22nd 2013, 5:38 PM

    I told my interviewer I was surprised and I was expecting one… She waved her hand and said that’s google USA and she didn’t bother with that kind of crap

    131
    Install the app to use these features.
    Mute Montys Moonshine
    Favourite Montys Moonshine
    Report
    Jun 22nd 2013, 5:47 PM

    Did u get the job?

    54
    Install the app to use these features.
    Mute Enola Straight
    Favourite Enola Straight
    Report
    Jun 23rd 2013, 10:33 AM

    Fruitcakes.

    4
    Install the app to use these features.
    Mute Eoin Byrne
    Favourite Eoin Byrne
    Report
    Jun 22nd 2013, 6:21 PM

    Some of them aren’t that mad. Some of them are just logic. That one about the eight balls is straightforward.

    Put three balls on each side of the scales. If they balance, then the heavier ball is one of the other two – weigh them and see which is heavier. If they don’t balance, take the three from the heavier side. Put one of each of those on each side (it doesn’t matter which ones) as your second weighing and you’ll find the heavier ball – if they balance, the other ball is the heavier one. Simples.

    68
    Install the app to use these features.
    Mute Laura
    Favourite Laura
    Report
    Jun 24th 2013, 6:20 AM

    Could you not just put 4 balls on one side and 4 on the other ?

    1
    Install the app to use these features.
    Mute Derek Lyster
    Favourite Derek Lyster
    Report
    Jun 22nd 2013, 8:41 PM

    Interviewer:why does this company need an engineer?
    Me:i don’t know,you put the ad in the paper.
    Strangely enough i never heard back from them!

    58
    Install the app to use these features.
    Mute Ian James Conway
    Favourite Ian James Conway
    Report
    Jun 22nd 2013, 5:57 PM

    4 the answer is always 4

    41
    Install the app to use these features.
    Mute onlybuzzinwitcha
    Favourite onlybuzzinwitcha
    Report
    Jun 22nd 2013, 11:10 PM

    Nah is 5 now. They changed it.

    13
    Install the app to use these features.
    Mute mark420
    Favourite mark420
    Report
    Jun 22nd 2013, 5:39 PM

    That’s mad ted

    40
    Install the app to use these features.
    Mute Tony Le Blanc
    Favourite Tony Le Blanc
    Report
    Jun 22nd 2013, 5:55 PM

    The lunatics are running the asylum folks

    31
    Install the app to use these features.
    Mute Emer Murphy
    Favourite Emer Murphy
    Report
    Jun 22nd 2013, 5:45 PM

    Id cry!

    23
    n365
    Install the app to use these features.
    Mute n365
    Favourite n365
    Report
    Jun 22nd 2013, 9:04 PM

    Got asked the manhole question in an interview for a a job in intel in 1993. Interviewer dint know the answer but I did.

    17
    Install the app to use these features.
    Mute oneeyedman
    Favourite oneeyedman
    Report
    Jun 22nd 2013, 9:40 PM

    Its so it won’t fall into the hole. Manhole cover if square or rectangular could easily be manipulated to fall into the hole, but if its circular 7t is by definition the same size all around so it won’t fall in……simples!

    37
    Mark
    Install the app to use these features.
    Mute Mark
    Favourite Mark
    Report
    Jun 23rd 2013, 1:44 AM

    Got asked the “why are manhole covers round?” question in an interview a few years ago. Said “because the manholes are, they wouldn’t fit if they were square”. Didn’t get the job.

    12
    See 1 more reply ▾
    Install the app to use these features.
    Mute Gerard McAuliffe
    Favourite Gerard McAuliffe
    Report
    Jun 23rd 2013, 11:39 AM

    There are multiple answers to that question – because roundness means they can be put in in any direction, increases standardisation and reduces costs, like ships portholes round objects are the most resilient to pressure and won’t bend or break as easily as angled objects. There are a few more but there’s no single right answer as long as you show logic.

    4
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 5:56 PM

    Oxbridge use similar method of questioning, although I understand that their questions are actually answerable and test lateral thinking.

    One of the best ones I’ve come across is: “What does a perm do?”

    16
    Install the app to use these features.
    Mute Triona
    Favourite Triona
    Report
    Jun 22nd 2013, 6:10 PM

    They do the same as a temp but with more security..

    292
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 6:13 PM

    Triona, with the greatest of respect, what relevance do that have to my comment?

    3
    See 15 more replies ▾
    Install the app to use these features.
    Mute Damocles
    Favourite Damocles
    Report
    Jun 22nd 2013, 6:15 PM

    Henry, it makes your hair curly.

    59
    Install the app to use these features.
    Mute Patrice Auborn
    Favourite Patrice Auborn
    Report
    Jun 22nd 2013, 6:17 PM

    Same as a hair do?

    27
    Install the app to use these features.
    Mute Little Jim
    Favourite Little Jim
    Report
    Jun 22nd 2013, 6:20 PM

    Perm/temp!
    Geddit?!

    110
    Install the app to use these features.
    Mute Tommy
    Favourite Tommy
    Report
    Jun 22nd 2013, 6:20 PM

    She was referring to permanent and temporary employment.

    79
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 6:20 PM

    Sorry, I was being a bit dense. I see what Triona was doing now. :P

    #TimeToGoHome

    Damocles, one could also argue that they provide a social structure to females of a certain age. By getting a perm, they are accepted into their circle of friends, by conforming to the norms expected of them, thereby obtaining a sense of belonging. It could be said that perms fulfil a rung of Maslow’s hierarchy of needs–social acceptance. :)

    27
    Install the app to use these features.
    Mute Damocles
    Favourite Damocles
    Report
    Jun 22nd 2013, 6:22 PM

    There was a fad for blokes getting perms too.

    38
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 6:25 PM

    Glad I missed that…

    13
    Install the app to use these features.
    Mute Damocles
    Favourite Damocles
    Report
    Jun 22nd 2013, 6:26 PM

    Frankly all a perm does is make your hair curly.

    Your answer is to the question, “What effect might a perm have?”, You’re over thinking the question.

    61
    Install the app to use these features.
    Mute John Gaffney
    Favourite John Gaffney
    Report
    Jun 22nd 2013, 6:32 PM

    Well the question was “what does a perm do?” not what are the effects of a perm or why do people get perms. A perm itself doesn’t actually do anything, its just a way of styling your hair.

    33
    Install the app to use these features.
    Mute John Gaffney
    Favourite John Gaffney
    Report
    Jun 22nd 2013, 6:33 PM

    Damocles – exactly!

    9
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 6:33 PM

    I probably am, Damocles, but sure, it makes for an interesting discussion!

    John, it depends on how one interprets “do”. ;)

    4
    Install the app to use these features.
    Mute Damocles
    Favourite Damocles
    Report
    Jun 22nd 2013, 6:37 PM

    Yeah, one thing I noticed from students at Oxford and Cambridge is that they might be formidable in their fields but ask them to organise a weekend of entertainment and accommodation for 20 to 30 spods from across the country and it all goes to pot.

    37
    Install the app to use these features.
    Mute Sarah Sue
    Favourite Sarah Sue
    Report
    Jun 22nd 2013, 6:44 PM

    Lol, Im guessing you didnt make it into Oxbridge then Henry?!

    27
    Install the app to use these features.
    Mute Henry Roberts
    Favourite Henry Roberts
    Report
    Jun 22nd 2013, 7:03 PM

    They weren’t on my list, Sarah Sue! :) But who knows, maybe in the future!

    2
    Install the app to use these features.
    Mute Cuddle Flips
    Favourite Cuddle Flips
    Report
    Jun 23rd 2013, 2:10 AM

    I was interviewed for a place in Oxbridge. There were no brainteasers, only questions relevant to the course I was applying to. Didn’t get it though :(

    8
    Install the app to use these features.
    Mute Gillian Claire Lane
    Favourite Gillian Claire Lane
    Report
    Jun 22nd 2013, 6:45 PM

    About time!

    13
    Install the app to use these features.
    Mute Nydon
    Favourite Nydon
    Report
    Jun 23rd 2013, 1:29 AM

    Surely the smartest thing to do is to whip out the old iPhone and google the answers? I mean do they really want to employ people who will waste time reinventing wheels?
    I used to always score top marks in ‘test your IQ’ books because the answers were always in the back and I copped on after the first one.

    12
    Install the app to use these features.
    Mute Irish Red
    Favourite Irish Red
    Report
    Jun 23rd 2013, 10:24 AM

    This is all well and good from google but they should also perhaps think about cutting down the amount of times they interview someone. I mean, what new information are you going to learn from a candidate at interview 6?! It’s a ridiculous policy.

    11
    Install the app to use these features.
    Mute Pat Lennon
    Favourite Pat Lennon
    Report
    Jun 22nd 2013, 6:04 PM

    Sounds like they should recruit some “People Operations” staff who have a clue – ex Head of Human Resources.

    11
    Install the app to use these features.
    Mute Jack Bowden
    Favourite Jack Bowden
    Report
    Jun 23rd 2013, 1:07 AM

    I think the hands of a clock cross each other 22 times a day.

    6
    Install the app to use these features.
    Mute Gerard McAuliffe
    Favourite Gerard McAuliffe
    Report
    Jun 23rd 2013, 11:40 AM

    24 times. Once every hour – 12 o clock, five past one etc. etc.

    5
    Install the app to use these features.
    Mute Shane McGettrick
    Favourite Shane McGettrick
    Report
    Jun 23rd 2013, 3:51 PM

    Isn’t the answer 23? For example, if your first cross over point is 12am, your 24th would be the following 12am, which is technically on a different day.

    3
    Install the app to use these features.
    Mute R Koolhaas
    Favourite R Koolhaas
    Report
    Jun 23rd 2013, 12:37 AM

    Round manhole covers cannot fall into the manhole they cover.

    4
    Install the app to use these features.
    Mute Emanuele Mulas
    Favourite Emanuele Mulas
    Report
    Jun 24th 2013, 1:13 PM

    Cool is old fashion share it on facenorris.com is the way I say cool

    1
Submit a report
Please help us understand how this comment violates our community guidelines.
Thank you for the feedback
Your feedback has been sent to our team for review.
JournalTv
News in 60 seconds