What is black when you buy it, red when you use it, and gray when you throw it away?

What word does this rebus represent?

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Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What is the riddle which can be asked all day with a different correct answer each time.

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

Take one out and scratch my head, I am now black but once was red. What am I?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Can you Find and name the hidden bird in the picture below ?

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.

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