A father's child, a mother's child, yet no one's son.

Who am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

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?

Prove that the below maths equation is true.

8 + 8 = 91

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

I have an eye but still cannot see.

Who am I?

Can you make a fire with just a single stick?

Can you count the number of squares in the given picture?