What four weights can be used to balance from 1 to 30 pounds?

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

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

There was a strange boy who was born before his father. How can this be possible?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

If an electric train is travelling south, then which way is the smoke going?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

How high do you have to count before you use the letter “a” in the English spelling of the whole number?