Table: speedway_results
Columns: record
year
date
driver
car_make
time
average_speed_mph

Question: What day had a time of 29.816?
SQL: SELECT "date" FROM speedway_results WHERE "time" = '29.816'

Question: What kind of car has the NASCAR Camping World Truck Series record?
SQL: SELECT "car_make" FROM speedway_results WHERE "record" = 'nascar camping world truck series'