Can You Please Help Me In Answering This Question?!

Is it true that two or more people will have the same dream, or ones that are much alike, without having had experienced situations that were alike? (That is, a dream that would not be based off of your previous experiences.) How about dreaming of the same person, is that just an unrban myth? Please help me by participating and we can work together in answering some of the most compelling questions...