1. What creature is the symbol for the Zodiac sign Pisces?

2. According to the Copenhagen interpretation of quantum mechanics, light can be considered to be both a particle and what?

3. In 'Paradise Lost,' Pandemonium is the capital city of what?

4. The 2012 season's vaccine turned out to be only 47 percent effective against the H3N2 strain of what disease?

5. The middle hour of the 1994 movie 'Speed' takes place aboard what?

What’s the "Kennection" between all five answers?