I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Can you name some countries which do not have the alphabet 'A' in them?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

There is a place where if I stand up straight, I will still be considered sideways.

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?