What number should come in place of the question mark below?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

What does this mean?

CCCCCCC

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

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

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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