If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

What has 13 hearts but no other organs?

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.

Can you find a five letter word that is left with only two letters if one is removed?

Can you solve the below tricky visual equation?

What runs around the whole yard without moving?

What number when divided in half becomes zero?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?