American nightclub

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?




Similar Riddles

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

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10+10 and 11+11 can give you the same answer.

Explain how?

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What common phrase is represented by the below lines

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Tough, 'I'm staying.'

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Tough, 'Let's get going.'

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Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Make the Square

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What does it mean?

What does it mean?

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We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

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10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
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In the image below, can you find the value of an angle(y)

The angle of a triangle

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You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

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Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.