CREATE TABLE "batting_averages" (
  "player" text,
  "matches" real,
  "inns" real,
  "n_o" real,
  "runs" real,
  "high_score" real,
  "average" text,
  "100" real,
  "50" real,
  "catches" real,
  "stump" real
);

Question:  what's the average where high score is 120
SQL: SELECT "average" FROM "batting_averages" WHERE "high_score"=120;

Question:  what's the player where 50 is 2 and n/o is 0
SQL: SELECT "player" FROM "batting_averages" WHERE "50"=2 AND "n_o"=0;

Question:  what's the player where inns is 21
SQL: SELECT "player" FROM "batting_averages" WHERE "inns"=21;