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

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

How is a fly different from a mosquito?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What always comes into a house through the keyhole?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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.