Table: race_results_58
Columns: year
entrant
chassis
engine
points

Question: how many points are there for a Chassis of porsche 718, and a Year smaller than 1964?
SQL: SELECT COUNT("points") FROM race_results_58 WHERE "chassis" = 'porsche 718' AND "year" < 1964

Question: what is the engine that saw 0 points, and a Chassis of porsche 718, in 1961?
SQL: SELECT "engine" FROM race_results_58 WHERE "points" = 0 AND "chassis" = 'porsche 718' AND "year" = 1961

Question: what is the engine that saw a Chassis of porsche 718, and 0 points, prior to 1964?
SQL: SELECT "engine" FROM race_results_58 WHERE "chassis" = 'porsche 718' AND "points" = 0 AND "year" < 1964