CREATE TABLE "classification" (
  "driver" text,
  "constructor" text,
  "laps" real,
  "time_retired" text,
  "grid" real
);

Question: what is the time/retired when the laps is less than 54 and the driver is mark donohue?
SQL: SELECT "time_retired" FROM "classification" WHERE "laps"<54 AND "driver"='mark donohue';

Question: what is the grid when the driver is mario andretti and the laps is less than 54?
SQL: SELECT MAX("grid") FROM "classification" WHERE "driver"='mario andretti' AND "laps"<54;

Question: how many laps were there when the grid was 24?
SQL: SELECT COUNT("laps") FROM "classification" WHERE "grid"=24;

Question: what is the time/retired when the laps is 6, the grid is less than 18 and the driver is clay regazzoni?
SQL: SELECT "time_retired" FROM "classification" WHERE "laps"=6 AND "grid"<18 AND "driver"='clay regazzoni';