Now put your hands at some distance from your mouth and blow again. Does the air from your mouth feel warm? Why?

When we put some acetone or petrol or perfume on our palm, it evaporates. During evaporation, particles of the liquid absorb energy from the surrounding or the surface of the...

(c) Cool days and cold nights 

No you get any taste there?

Yes, I often warm my hands in winter by blowing on them when they are cold. It feels warm and cozy.

On blowing hard from the mouth on to the hands, the air from the mouth feels hotter as compared to the air around.

Yes, the cloth has become warm.

Yes, a mirror can also made hazy in the same way. On blowing air from the mouth on the mirror, the mirror becomes moist. The air blown from mouth is...

Yes, I can feel the air when I breathe out from your nose

Example, when we blow to cool hot things:  (i) A cup of tea  (ii) any hot food etc.  Example when we blow to warm a cold thing. Our hands in the winters.