What is the below Rebus indicate?

What is the Surname of Barbie Doll?

What goes up but never comes down?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Why are all black people so quick ?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Solve below rebus puzzle?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?