What is the word or phrase?

I am quite hot but become too cold if you remove the first two letters. What am I?

During which month do people sleep the least?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Why did the Girl throw the butter out of the window?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

Can you find out the missing number in the grid?