Question: Which entrant scored less than 8 points and used a Maserati chassis?
SQL: SELECT "Entrant" FROM "2-1251950-1" WHERE "Points" < 8.0 AND "Chassis" = 'Maserati';

Question: Which entrant, with an Offenhauser L4 engine and a Kurtis Kraft KK500A chassis, scored 9 points before 1955?
SQL: SELECT "Entrant" FROM "2-1251950-1" WHERE "Engine" = 'Offenhauser L4' AND "Year" < 1955.0 AND "Chassis" = 'Kurtis Kraft KK500A' AND "Points" = 9.0;

Question: What type of engine did the Fuel Injection entrant use?
SQL: SELECT "Engine" FROM "2-1251950-1" WHERE "Entrant" = 'Fuel Injection';

Question: What is the average number of points for an Offenhauser L4 engine with a Trevis chassis?
SQL: SELECT AVG("Points") FROM "2-1251950-1" WHERE "Engine" = 'Offenhauser L4' AND "Chassis" = 'Trevis';