Bheja fry question

 This bheja fry question I heard it recently on web radio.

Question 

What is it that always stay in a box but is lightened as soon as it is out of the box ???

Answer 

By listening to question  I could quickly figured out as a match stick.

But other listeners came with different answers. 

They are 

                             Cigarettes 

                  

                             Fire crackers     !!!!