Hi,
My name is Gemma and I'm from Barcelona.
About the twin's story, I think that every body has his life and his destiny too. The two sisters were identicals, they drunk the same, but one of them died and the other didn't die. Because? It was her destiny!
The second puzzle explains of a couple's in love story. One day, they were to airport and the man took a plane. After, the woman went to home and she saw in TV that a plane had crashed! She didin't worried because she was watching a video! It was a coincidence!