Question: Who had the mountains classification when Borut Božič was the winner?
SQL: SELECT "Mountains Classification" FROM "1-25655781-17" WHERE "Winner" = 'Borut Božič';

Question: What was the team classification where André Greipel was the winner and had the points classification?
SQL: SELECT "Team Classification" FROM "1-25655781-17" WHERE "Winner" = 'André Greipel' AND "Points Classification" = 'André Greipel';

Question: How many stages are there?
SQL: SELECT MAX("Stage") FROM "1-25655781-17";

Question: How many sprint classifications are there where Marco Frapporti is the winner?
SQL: SELECT COUNT("Sprint Classification") FROM "1-25655781-17" WHERE "Winner" = 'Marco Frapporti';