When monkey rotate the gear, which mark will be hit 1 or 2 ?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

The more you take me, the more you leave me behind.
Who Am I?

Can you place three balls such that the equation shown in the picture holds true?

What does this Rebus Picture mean?

How can you make a TV, a bed, a dog, and a car liquid?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

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

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?