In the six seasons of "Gossip Girl," audiences may have noticed some major plot holes and incongruencies.The story behind Chuck Bass's mother never quite added up and neither did the story of how he lost his virginity.The same closet was used to represent both Blair Waldorf and Hazel's mother's closets.Although the popular CW show, "Gossip Girl," ended in 2012, its six seasons continue to live on streaming services like Netflix. And if you were to look closely enough, you'd notice some things don't always add up throughout the show, like the revelation of Gossip Girl's identity. INSIDER rounded up some of the mistakes you may have missed during the six seasons of "Gossip Girl." From the reappearance of trashed phones to sneaky recasting, here are some of the head-scratching moments from the show. There was a lot of confusion surrounding Chuck Bass's mom."Gossip Girl" fans are still unsure of the true identity of Chuck Bass's mom. Was it really family friend Diana Payne or the mysterious Elizabeth Fisher aka Evelyn Bass' But the real question surrounds her death and eventual resurrection. In the pilot episode, Chuck refers to his mother in the present tense and definitely gives no hint that she is deceased. A major storyline throughout the first couple of seasons, however, revolves around his mother's death during childbirth and the blame he shouldered for it until he realizes that she might still be alive. Serena threw away her phone only to have it again in the next episode.Considering the elite status of Serena and her fellow Upper East Siders, it's hard to imagine her rifling through the trash to retrieve her phone. But this is what appeared to have happened during the season one episode, "The Wild Brunch" where van der Wooden dumps her glittery device in the garbage. In later episodes, she is seen with the exact phone and case. Audiences got two different answers regarding where Serena van der Woodsen's dad got his education.What we know for sure is that Serena's dad attended an Ivy League school. But which one' In the "Poison Ivy" episode Serena tells Dan Humphrey that Dr. William van der Woodsen attended Harvard but later in "Belles de Jour," she tells Blair Waldorf that he went to Columbia University.He is, however, a doctor so it is possible to have attained different degrees along the way but this distinction was never made.See the rest of the story at Business Insider Click here to read full news..