Table: race_results_100
Columns: year
entrant
chassis
engine
points

Question: Which entrant scored less than 8 points and used a Maserati chassis?
SQL: SELECT "entrant" FROM race_results_100 WHERE "points" < 8 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 race_results_100 WHERE "engine" = 'offenhauser l4' AND "year" < 1955 AND "chassis" = 'kurtis kraft kk500a' AND "points" = 9

Question: What type of engine did the Fuel Injection entrant use?
SQL: SELECT "engine" FROM race_results_100 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 race_results_100 WHERE "engine" = 'offenhauser l4' AND "chassis" = 'trevis'