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?

Can you place six X (crosses) in below board without making three in a row in any way ?

What is the next number in this series?

4,12,84,3612....

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

There are forty elephants and they have forty-fore heads. How can this be possible?

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.

what one word does the below rebus identifies?