Logic Interview Questions

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“You have 25 horses, what is the minimum number of races you can find the top 3.

In one race you can race 5 horses, and you don't have a timer.”

“25 racehorses, no stopwatch. 5 tracks. Figure out the top three fastest horses in the fewest number of races.”

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“You are in a room with 3 switches which correspond to 3 bulbs in another room and you don't know which switch corresponds to which bulb. You can only enter the room with the bulbs once. You can NOT…”

“Given a set of people, one of them is a celebrity. You have a 2D array which describes which people know each other, that is [N, M] is true if N knows M. The celebrity will not know anyone (except…”

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“If you have a three gallon jug and a five gallon jug No marks on either one The goal is to fill the five gallon jug with four gallons of water How is this accomplished?”

“Considering a 2-dimension matrix that can only be traversed by 1 adjacent position at a time and never diagonally. Create an algorithm to traverse that matrix from its upper-left corner to its…”

“Scenario: You have 8 golf balls and 1 is heavier than the 7 others. All you have is a balance used in chemistry classes. What is the shortest number of times you could measure the golf balls to find…”

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“We have a pond containing a single bacterium. The number of bacteria double every 5 minutes, and the pond is full of them in 24 hours. If we started with the same pond but two bacteria, how long will…”

“There is a body of water that starts with 1 square unit, and doubles in size every day (2 units after 2 days, 4 units after 4 days). It takes 100 days to fill up. How many days would it take to fill…”

“Sequence of numbers in random order and 1 of them is missing how to find that out...”

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