Adam

As-Salaam `Alaykum wa Rahmatullahi wa Barakaatuh. How did the population grow after Adam, peace be upon him, and Eve? What confuses me is, did Adam's children, (brother and sister) engage in physical relations (production)? I have no idea about this, so if I’m mistaken, please do correct me and your clarification and elaboration will help in better understanding… Jazakum Allah Khairan!

When Prophet (peace and blessings be upon him) said "Allah created Adam in His image" what does "his image" refer to and how should we understand it?

Salam `Alaykum! Sheikh, many people always presume that it was Eve who caused Adam to be driven away from Paradise! Is this true?

We know that Adam and Eve were the first humans on the planet. How did we have a population of humans from them. Did thier daughter and son get married with each other and have children?