What has to be broken before you can use it?

What is the word or phrase below?
R | E | A | D

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

A blonde put eyeliner on her head. Why?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Who can jump higher than a Mountain?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

You need to arrange three 7 and mathematical symbols to form number 1?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?