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29 Toughest QuestionsAsked in Facebook JobInterviewsBY ADARSH VERMA · OCTOBER 25, 2015

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Mark Zuckerberg created

Facebook 11 years ago with an

aim to connect the college

students. Today, apart from connecting

the college students and obviously many

others, it’s one the favorite places to

work at in the tech industry.

The interns working at Facebook make

$25,000 more than the average US

citizen. Also, the employees on

Glassdoor voted Facebook as the #1

company to work for. But, getting a job

there isn’t an easy job. To accomplish

that, you’ll have to answer some tricky

Facebook interview questions to prove

your caliber.

Most of the questions are inclined

towards the technical side. We have

collected some of the toughest

questions asked from Glassdoor and

many of these are extra-challenging.

Facebook is one of the best places to work for. But,

getting a job offer from Mr. Zuckerberg’s company

isn’t so easy. Here we are with a compilation of the

most interesting Facebook interview questions found

on Glassdoor. Take a look at them and tell us your

views.

WHAT’S HOT

29 Toughest Questions Asked inFacebook Job Interviews25 OCT, 2015

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Let’s take a look at these Facebook

interview question for different jobs:

Question #1

There is a building with 100 floors. You

are given 2 identical eggs. How do you use

2 eggs to find the threshold floor, where

the egg will definitely break from any

floor above floor N, including floor N

itself.

(Data Scientist candidate)

Question #2

If you were going to redesign an ATM

machine, how would you do it? 

(Product Designer Candidate)

Question #3

How many birthday posts occur on

Facebook on a given day?

(Data Scientist Candidate)

Question #4

Do you think that Facebook should be

available to China?

(User Operations Analyst candidate)

Question #5

How much do you charge to wash every

window in Seattle? 

(Online Sales Operations Candidate)

Question #6

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Describe how the website works. (That’s

the whole question, with no context.)

(Technical Project Manager Candidate)

Question #7

How much money is spent on the internet?

(Account Manager Candidate)

Question #8

How would you design a simpler TV

remote control?

(Product Designer Candidate)

Question #9

How do you deal with communicating less

than favorable information?

(Training Candidate)

Question #10

You’re at a casino with two dice, if you roll

a 5 you win, and get paid $10. What is

your expected payout? If you play until you

win (however long that takes) then stop,

what is your expected payout? 

(Data Scientist Candidate)

Question #11

You have two light bulbs and a 100-story

building. You want to find the floor at

which the bulbs will break when dropped.

Find the floor using the least number of

drops.

(Software Engineer Candidate)

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Question #12

How would you set up an interview in this

room? 

(Content Producer Candidate)

Question #13

How many vacuums are there in the USA?

(Risk Analyst Candidate)

Question #14

What options do you have, nefarious or

otherwise, to stop people on a wireless

network you are also on (but have no

admin rights to) from hogging bandwidth

by streaming videos? 

(Production Engineer Candidate)

Question #15

How many Big Macs does McDonald sell

each year in the US?

(Data Scientist Candidate)

Question #16

How would you build Facebook for blind

people?

(Product Manager Candidate)

Question #17

Tell me your plan of action if you saw that

photo uploads suddenly dropped by 50%.

(Operations Associate User Intelligence

Candidate)

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Question #18

A Russian gangster kidnaps you. He puts

two bullets in consecutive order in an

empty six-round revolver, spins it, points it

at your head and shoots. *click* You’re

still alive. He then asks you, do you want

me to spin it again and fire or pull the

trigger again. For each option, what is the

probability that you’ll be shot? 

(Internet Marketing Analyst Candidate)

Question #19

Should Facebook continue to add features

or rely on 3rd party apps?

(Product Designer Candidate)

Question #20

If you were an animal what kind would

you be and why?

(User Operations Analyst Candidate)

Question #21

What are you least proud of on your

resume?

(Media Solutions Specialist Candidate)

Question #22

Given access to all the data Facebook

collects, what would you do with it?

(Product Analytics Candidate)

Question #23

Pre-IPO, they asked me to write a paper

on the valuation of Facebook. They also

asked me what I thought the greatest

   

technological advancement was in the

past 20 years.

(Software Engineer Candidate)

Question #24

If you have 100 credit card numbers (and

all info) how would you make as much $

possible in 24 hours using only online

transactions? (Many follow-up questions

of how to get around certain fraud

deterrents.) 

(Ads Risk Associate Candidate)

Question #25

You are trying to rob houses on a street.

Each house has some amount of cash.

Your goal is to rob houses such that you

maximize the total robbed amount. The

constraint is once you rob a house you

cannot rob a house adjacent to that

house.

(Software Engineer Candidate)

Question #26

The most difficult question was the 8-hour

test, which involved deriving a novel and

fairly-involved algorithm, significant

CSS/HTML/JS coding, and plenty of

opportunities to get something subtly

wrong.

(User Interface Engineer Candidate)

Question #27

25 racehorses, no stopwatch. 5 tracks.

Figure out the top three fastest horses in

the fewest number of races.

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(Software Engineering Summer Intern

Candidate)

Question #28

What is the process you would go about in

spotting a fake profile?

(User Operations Analyst Candidate)

Question #29

You’re about to get on a plane to Seattle.

You want to know if you should bring an

umbrella. You call 3 random friends of

yours who live there and ask each

independently if it’s raining. Each of your

friends has a 2/3 chance of telling you the

truth and a 1/3 chance of messing with

you by lying. All 3 friends tell you that

‘Yes’ it is raining. What is the probability

that it’s actually raining in Seattle?

(Data Scientist Candidate)

Did you find these Facebook interview

questions difficult? Tell us in the

comments below.

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27 Comments Sort by

Ryan Christopher DallaviaGreat. Now the answers??

Like · Reply · 3 · Oct 25, 2015 8:58am

Jahanzeb Haroon · FG SchoolnoO 7 I-10/2 IslI didnt read each and every question. just scrolling down and stop on Question #18.According to me the answer is this "Pulling the triger without spinning have more chance that I get killed."Why? Because there are total 6 slots and 1 is already skipped. Now there are 5 slots left, 3 are empty and 2 havebullets in them. There is 40% chance that I'll be shot if he fire.But if he spin the revolver then the counter will be reset and now there are 4 empty slots and 2 have bullets inthem. Now there is 33.32% chance that I'll be shot.

Top

Add a comment...

them. Now there is 33.32% chance that I'll be shot.Thats it

Like · Reply · 3 · Oct 25, 2015 10:01am

Juan De Meer Escat · Universidad Carlos III de MadridSorry but you are wrong. It is true that there are 5 slots left, 3 are empty and 2 have bullets, BUTremember that the 2 bullets are consecutive so its imposible that you hit the second bullet (before thefirst). There are 4 possibilities: 00011, 00110, 01100 and 11000. Only the last combination will kill you sothere is 25% chance of dying pulling the trigger again

Like · Reply · 13 · Oct 25, 2015 11:34am

Wan Faisal · University Malaysia SarawakJuan De Meer Escat i thought the answers are 1/3 and 1/2Like · Reply · Oct 25, 2015 6:44pm

Jahanzeb Haroon · FG SchoolnoO 7 I-10/2 IslJuan De Meer Escat Agreed

Like · Reply · 1 · Oct 25, 2015 10:54pm

Sherif Maher Eaid · R&D Software Engineer at IdealabsQuestion #1 and #11:Fairly the same thing, we use a method called "fast and slow pointers" where we drop one egg/light bulb everyfloor starting first, and the other egg/light bulb every two floors. whenever the "fast" one breaks, we use the otherone to test the floor right beneath it.

Question #3:There are about 1.5 Billiion people on facebook as of Q2 2015, assuming birthdays are evenly distributed over theyear. we can easily know the answer by dividing 1.5Bn/365

Question #18:You should tell the gangster to re-spin the revolver, it gives you greater chance (4/6) of survival asoppose... See More

Like · Reply · 1 · Oct 25, 2015 8:38pm

Juan De Meer Escat · Universidad Carlos III de MadridSorry but you are wrong at least in question #18. It is true that there are 5 slots left, 3 are empty and 2have bullets, BUT remember that the 2 bullets are consecutive so its imposible that you hit the secondbullet (before the first). There are 4 possibilities: 00011, 00110, 01100 and 11000. Only the lastcombination will kill you so there is 25% chance of dying pulling the trigger again

Like · Reply · 1 · Oct 26, 2015 12:56am

Jehandad Kamal · Works at AxactEnough about questions! I would like to know how they should be answered.

Like · Reply · 2 · Oct 25, 2015 8:52am

Veer Amrit Singh · Web Developer at FreelancerAnswers captain?Like · Reply · Oct 25, 2015 11:05am

Alshan Mahroof · Works at StudentWow super questionsLike · Reply · Oct 28, 2015 10:25pm

Yash Kansal · Works at *noT yeT workinG! !M stilL studyinG*Answers please..best question ever! Dying to see the answers!! Pls make it availableLike · Reply · Oct 25, 2015 12:31pm

Akash Prasanna · Am still a damn studentsuperb questions! now time for Answers________?

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superb questions! now time for Answers________?Like · Reply · Oct 26, 2015 12:56am

Konrad Leszczyński · Works at Poznańskie Centrum Superkomputerowo-Sieciowe#18 1/3 if spinned 1/4 if not spinnedLike · Reply · Oct 27, 2015 2:05pm

Konrad Leszczyński · Works at Poznańskie Centrum Superkomputerowo-Sieciowe#27 How wide are the trucks? Can I put all the horses together in one race?Like · Reply · Oct 27, 2015 2:02pm

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