Question
Two tumblers have stuck together into each other. How will you loosen them using hot water and cold water?
Solution
Two tumblers which are stuck together can be separated using hot and cold water. Firstly, fill the glass on the to with cold water. The cold temperature will make the glasses contract. With cold water in the top glass, pour hot water in the glass which is at the bottom. The heat will make the bottom glass expand. Spontaneous contraction and expansion of the glasses will pull them apart.