what does the below rebus means?

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?

I taste better than I can smell. Who am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

What is both possible and impossible at the same time?

What's the best place to go shopping in the ocean?

Remove two matchsticks to make the below equation correct.

10+10 and 11+11 can give you the same answer.

Explain how?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?