Top tough interview questions heard at Google, Apple, Microsoft and others. - InterviewQuestions.

Some tough questions that was asked in interview at  top most  companies like Google, Apple, Microsoft Twitter, and others.

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• Google - Administrative Assistant.Question: If you were given a box of pencils, list 10 things you could do with them that are not their traditional use.

• Google - Project Manager.Question: You want to design a phone for deaf people — how do you do it?

• Apple - Intern
  Question: What's the most creative way you can break a clock?

• Amazon - Senior Recruiting Manager.
  Question: How would you solve problems if you were from Mars?

• Bittorrent - QA Automation Engineer.
  Question: A dwarf-killing giant lines up 10 dwarfs from shortest to tallest. Each dwarf can see all the shortest dwarfs in front of him, but cannot see the dwarfs behind himself. The giant randomly puts a white or black hat on each dwarf. No dwarf can see their own hat. The giant tells all the dwarfs that he will ask each dwarf, starting with the tallest, for the color of his hat. If the dwarf answers incorrectly, the giant will kill the dwarf. Each dwarf can hear the previous answers, but cannot hear when a dwarf is killed. The dwarves are given an opportunity to collude before the hats are distributed. What strategy should be used to kill the fewest dwarfs, and what is the minimum number of dwarfs that can be saved with this strategy?

• Electronic Arts - Senior Software Engineer.
  Question: How do you compute the collision of two moving spheres? Give me both the mathematical equations for the solution as well as an algorithmic implementation.

• Facebook - Business Operation Intern.
  Question: You have a bag of with "N" number of strings. At random, you pull out a string's end. You pull out another string end and you tie the two together. You repeat this until there are no loose ends left to pull out of the bag. What is the expected number of loops?

• Microsoft - Software Development Engineer.
  Question: A disc is spinning on a spindle, and you don't know which way. You are given a set of pins. Describe how you would use them to determine which way the disc is spinning.

• Microsoft - Intern.
  Question: How would you design an elevator?

• Microsoft - Associate Consultant.
  Question: Name as many Microsoft products as you can.

• Tesla Motor - Engineer Technician.
  Question: How would you describe a dynamometer to an 8-year-old child?

• Twitter - Senior Software Engineer.
  Question: Is this binary tree a mirror of itself?

• Twitter - Recruiter.
  Question: Why should we not hire you?

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