CREATE TABLE "the_gravity_group_coasters" (
  "name" text,
  "park" text,
  "length_ft" real,
  "height_ft" real,
  "speed_mph" text,
  "opened" text,
  "status" text
);

Question: How many parks are called mt. olympus
SQL: SELECT COUNT("name") FROM "the_gravity_group_coasters" WHERE "park"='Mt. Olympus';

Question: How fast is the coaster that is 163 feet tall
SQL: SELECT "speed_mph" FROM "the_gravity_group_coasters" WHERE "height_ft"=163;

Question: What is the length of the coaster with the unknown speed
SQL: SELECT "length_ft" FROM "the_gravity_group_coasters" WHERE "speed_mph"='unknown';

Question: How long is the rollar coaster on Kemah Boardwalk
SQL: SELECT "length_ft" FROM "the_gravity_group_coasters" WHERE "park"='Kemah Boardwalk';

Question: What park is Boardwalk Bullet located in?
SQL: SELECT "park" FROM "the_gravity_group_coasters" WHERE "name"='Boardwalk Bullet';

Question: How many parks is Zippin Pippin located in
SQL: SELECT COUNT("park") FROM "the_gravity_group_coasters" WHERE "name"='Zippin Pippin';