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Cloudmere Inc Interview Puzzle #1 - Measuring Glass Puzzle

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There are 2 sand measuring glasses.
The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand measuring glasses running together ?

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Cloudmere Inc Interview Puzzle #2 - Three Rats Collide Probability Problem

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Three rats are sitting at the three corners of an equilateral triangle. Each rat starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the rats collide?

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Cloudmere Inc Interview Puzzle #3 - Famous Egg Floor Riddle

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* You are given 2 eggs.
* You have access to a 100-story building.
* Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor.Both eggs are identical.
* You need to figure out the highest floor of a 100-story building an egg can be dropped without breaking.
* Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

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Cloudmere Inc Interview Puzzle #4 - Cross The River Riddle

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2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

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Cloudmere Inc Interview Puzzle #5 - Logic Coins Puzzle

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Assuming i have an infinite supply of coins.

What is the fewest number of coins would be required in order to make sure each and every coin touched exactly three other coins.

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