As any superstitious person will tell you, 13 is hardly any old number. For centuries the sinister prime has been associated with bad luck, especially on Friday. But where did the negative association ...

It's Friday the 13th! Another "unlucky" day is upon us, which means fears and anxiety are bubbling, but there's no need to fret. A Friday (the 13th) is better than Monday, right? Here's some spooky ...