View All num of num See all Photos Schlumberger This employer has taken extra steps to respond to reviews and provide job seekers with accurate company information, photos, and reviews. Interested for your company?Learn More. www.slb.com Employer Engaged Overview Reviews Salaries Interviews Jobs Photos Benefits 1.6k Reviews 3.2k Salaries 1.1k Interviews Follow Add Review or Salary Follow Add Review or Salary Interview Question Field Engineer Interview(Student Candidate) Conway, AR Schlumberger You have two candles that burn for one hour each. How do you measure 90 minutes exactly using only those two candles? Tags: See more , See less 8 Answer Add Tags Answer Interview Answer 1 Answer ▲ 3 ▼ light one of the candles on both ends. The other candle is lit on one side olny. shyam on Jan 31, 2013 Add Answers or Comments To comment on this, Sign In or Sign Up.