What is the Surname of Barbie Doll?

Can you place six X (crosses) in below board without making three in a row in any way ?

Can you guess the name of the month by looking the below rebus ?

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?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Why is it very easy to weigh a fish?

What English word has three consecutive double letters?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

What number when divided in half becomes zero?

No one wants to have it, but if one got it, he does not want to lose it. What is It?