Q1:

What is Black when you buy it !

Red when you used it !

And Grey when you throw it away?

Q2:

A murderer is condemned to death and was asked to choose 1 out of the 3 doors? Which is the Safest? 

(a) Room raging with fire.

(b) Room full of assasin equiped with guns & bullets.

(c) Room full of Lions who have not eaten for 3 years.

Check out Comments for answer.