Can you replace the question mark with the correct number in the below table sequence?

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?

What is full of holes but still holds water?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Which point will the car reach to go out?

81 x 9 = 801. What must you do to make the this equation true?

Replace the question mark with the correct number.

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?