Question: What year has 54 (73) points?
SQL: SELECT SUM("Year") FROM "2-181892-1" WHERE "Pts." = '54 (73)';

Question: What is the chassis more recent than 1967?
SQL: SELECT "Chassis" FROM "2-181892-1" WHERE "Year" > 1967.0;

Question: What is the year of the Lotus 25 chassis?
SQL: SELECT AVG("Year") FROM "2-181892-1" WHERE "Chassis" = 'Lotus 25';

Question: What is the year of the lotus 18 chassis?
SQL: SELECT COUNT("Year") FROM "2-181892-1" WHERE "Chassis" = 'lotus 18';