If eleven plus two equals one, what does nine plus five equal?

If 21x = 79x, what is the value of x?

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.

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What you cannot hold but it is yours?