Question

Give one example :- How will you convert liquid to solid by giving heat???

Answer 1

We can convert liquid to solid by giving heat :

One example :
Ice..

Answer 2

Absolutely true. I was just trying to make fun of the very bad headline. The headline was "Science: A Liquid That Turns Solid When Heated", which is not at all interesting.

Also eggs cooking is the water coming out. 

Now that is plain b-s. As I said, what happens is that when you add energy (heat) to the proteins, they re-fold and turns into a more stable substance, transforming from a liquid to a firm state.