You know those guys who can solve a Rubik's cube in a matter of seconds? Well, Graham Parker is definitely not one of them. After 26 years of trying, Parker finally managed to solve the Rubik's cube that confounded him. Now, you may be thinking that he only occasionally picked up the puzzle, slowing his progress—but the reality is that he obsessed over it day after day, night after night. 'I cannot tell you what a relief it was to finally solve it,' the 45-year-old from Portchester, Hampshire, said. 'It has driven me mad over the years – it felt...