What is the coolest letter in the alphabet?

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

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

I can write cow in 13 letters.

Can You?

Can you make a six-letter word using the letters N, A and B ?

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?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?