What is the Surname of Barbie Doll?

What is the next shape from answers A, B, C, and D figure?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

No matter how little or how much you use me, you change me every month. What am I?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.