Table: grand_prix_1973
Columns: driver
constructor
laps
time_retired
grid

Question: I want the total number of Laps for time/retired for + 4 Laps and grid more than 20
SQL: SELECT COUNT("laps") FROM grand_prix_1973 WHERE "time_retired" = '+ 4 laps' AND "grid" > 20

Question: I want the average Laps for grid of 9
SQL: SELECT AVG("laps") FROM grand_prix_1973 WHERE "grid" = 9