I dont know what kind of Serif font is being used

Palatino  Suggested by SexyElvis7 

Can't say at this scale which version of the font
http://en.wikipedia.org/wiki/Palatino

Palatino Linotype
Palatino (Adobe)
Book Antiqua (Microsoft, included in MS Office)
URW Palladio

FPL Neu (open source)
http://www.alice-dsl.net/ralfstubner/fplneu-otf.html

Thanks!