do questions and answers produce energy and heat that can be exchangeable between people [?]
I think you are referring to the nervous anxiety that unexpected answers to one's questions can create. Hearing different points of view takes you out of your comfort zone, knocking out assumptions about the world. When you try to describe the anxiety and confusion we collectively feel upon realising we are not all in agreement about everything, "energy" can serve as a useful metaphor. The greater the diversity of viewpoints you bring together in one place, the more "energy" there is in debates.
But of course, "energy" is nothing more than a metaphor in this context; it won't power a car.
that might affect on ones dreams at night , thoughts and doing homeworks? ...I'm serious.
Any emotional experience can affect the rest of your life, as well as the content of your dreams, so of course the answer to your question is "yes".