16 unusual interview questions you may face at Facebook interviews [View all]
You are trying to rob houses on a street. Each house has some +ve 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 interview
"You have two lightbulbs and a 100-storey 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 interview
"Which is better? Having 10 false positives or 80 false positives?" -- Analyst interview
"How many Big Macs does McDonald's sell each year in the U.S.?" -- Data scientist interview
"How many mailboxes are there in San Francisco?" -- Risk analyst interview
"How would you find out the number of cars passing through a busy bridge?" -- Software engineer interview
"How many vacuums are there in the U.S.?" -- Risk analyst interview
"You're about to get on a plane to Seattle. You want to know if you should bring an umbrella. You call three random friends of yours who live there and ask each independently if it's raining. Each of your friends has a two-thirds chance of telling you the truth and a one-third chance of messing with you by lying. All three friends tell you that 'Yes' it is raining. What is the probability that it's actually raining in Seattle?" -- Data scientist interview
http://www.sfgate.com/business/article/16-unusual-interview-questions-you-may-face-at-6569103.php
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