"Burning house" is an active adjective. But i cant figure out how is that -ing form in burning house make the word as an active adj. How can we differ burning house and burnt house..
We can speak about participles here. There are different forms but we meet only two of them in your question. They are "burning " which is Present Participle and "burnt " which is called Past Participle.
Present Participles express actions in progress. "Burning " actually means "on fire".
Past Participles have passive meaning and that of a finished action. "Burnt " means that the process was completed and the house doesn't exist any more.