What do you get if you add 2 to 100 four times?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

What number when divided in half becomes zero?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What is the coolest letter in the alphabet?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Solve the following series:
AZ, GT, MN, __, YB

I’m tall when I’m young, and I’m short when I’m old. What am I?