Question: what's the author / editor / source with index (year) being Press Freedom (2007)
SQL: SELECT "Author / Editor / Source" FROM "1-12000368-1" WHERE "Index (Year)" = 'Press Freedom (2007)';

Question:  how many countries sampled with year of publication being 2007 and ranking l.a. (2) being 7th
SQL: SELECT COUNT("Countries sampled") FROM "1-12000368-1" WHERE "Year of publication" = '2007' AND "Ranking L.A. (2)" = '7th';

Question: what's the author / editor / source with world ranking (1) being 73rd
SQL: SELECT "Author / Editor / Source" FROM "1-12000368-1" WHERE "World Ranking (1)" = '73rd';