Misc: There are more than ________ earthquakes throughout the world every year?

Questions

Music - Country singer Vince ?

Music - Crosby, Stills and Nash's debut album included a song about a girl and the colour of her eyes. Name that song.?

Music - For whom did Colonel Tom Parker act as manager?

Music - Formerly with Spencer Davis, he went on to form Traffic with Dave Mason. He is?

Music - From what platform does the 'Chattanooga Choo Choo' leave Pennsylvania station?