Speed of light is a constant which predetermines local structure of the space-time. This constant specifies also the absolute upper limit of speed of any massive particle and is known to be the only possible value of speed of any massless particle. However, the message of 9/2011 from CERN and OPERA tells us that neutrino exceeds it. This message requires that all unanswered questions about relativity and causality accumulated in physics, including the question, how can neutrino do it, must now be answered. In this book problems of causality accumulated in various areas of physics, are being discussed. A theory is proposed, which shows that if neutrino is a massless particle carrying gravimagnetic charge, its speed in the field of rotating Earth differs from that of light and depends on direction.