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?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

Can you spot the hidden girl in the picture below?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Can you solve below mathematical equation?

2^1234 - 2^1233

What is the word or phrase?

What can you serve, but never eat?

What is the next number in this matchsticks series riddle?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?