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?

In the picture given below, can you find out which digit will take place of the question mark?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

Count the number of balls in picture below:

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?