**Procter & Gamble:** Sell me an invisible pen.

**Facebook:** Twenty five racehorses, no stopwatch, five tracks. Figure out the top three fastest horses in the fewest number of races.

**Citigroup: **What is your strategy at table tennis?

**Google:** You are climbing a staircase. Each time you can either take one step or two. The staircase has *n* steps. In how many distinct ways can you climb the staircase?

**Capital One: **How do you evaluate Subway’s five-foot long sub policy?

**Gryphon Scientific: **How many cocktail umbrellas are there in a given time in the United States?

**Enterprise Rent-A-Car****: **Would you be okay hearing “no” from seven out of 10 customers.

**Goldman Sachs: **Suppose you had eight identical balls. One of them is slightly heavier and you are given a balance scale. What’s the fewest number of times you have to use the scale to find the heavier ball?

**Towers Watson: **Estimate how many planes are there in the sky.

**Lubin Lawrence: **If you could describe Hershey, Godiva and Dove chocolate as people, how would you describe them?

**Pottery Barn: **If I was a genie and could give you your dream job, what and where would it be?

**Kiewit Corp.: **What did you play with as a child?

**VWR International: **How would you market a telescope in 1750 when no one knows about orbits, moons etc.

**Diageo North America: **If you walk into a liquor store to count the unsold bottles, but the clerk is screaming at you to leave, what do you do?

**Brown & Brown Insurance: **How would you rate your life on a scale of 1 to 10?

**Jane Street Capital****: **What is the smallest number divisible by 225 that consists of all 1’s and 0’s?

**UBS: **If we were playing Russian roulette and had one bullet, I randomly spun the chamber and fired but nothing was fired. Would you rather fire the gun again or respin the chamber and then fire on your turn?

**Merrill Lynch: **Tell me about your life from kindergarten onwards.

**Susquehanna International Group: **Five guys, all of different ages, enter a bar and take a seat at a round table. What is the probability that they are seated in ascending order of age?