Question

[Phạm Minh Khôi]

When you drop it, it wơn't die but when you drop it in the water, it will die. What is it?

Answer 1

[Nguyễn Bình Nguyên]

maybe salt, sugar or something can soluble in water

Answer 2

[Lê Song Phương]

It is paper. Why? Because when you drop the paper in nornal land, the paper is light so not only it won't die but also won't be "injured". But when you drop it in the water... you've already known.