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

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

A farmer and his neighbour once went to Emperor Akbar"s court with a complaint. "Your Majesty, I bought a well from him," said the farmer pointing to his neighbour, "and now he wants me to pay for the water."
"That"s right, your Majesty," said the neighbour. "I sold him the well but not the water!"?
The Emperor asked Birbal to settle the dispute. How did Birbal solve the dispute?

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

What part of Turkey has the most feathers?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

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

What is the riddle which can be asked all day with a different correct answer each time.