CREATE TABLE "men_s_singles" (
  "num" real,
  "player" text,
  "age" real,
  "australian_open" real,
  "french_open" real,
  "wimbledon" real,
  "us_open" real
);

Question: How many players are on this list?
SQL: SELECT MAX("num") FROM "men_s_singles";

Question: Who won the French Open in 1999?
SQL: SELECT "player" FROM "men_s_singles" WHERE "french_open"=1999;

Question: Who won the US Open in 1937?
SQL: SELECT "player" FROM "men_s_singles" WHERE "us_open"=1937;

Question: How many times did Roy Emerson win the Australian Open?
SQL: SELECT COUNT("australian_open") FROM "men_s_singles" WHERE "player"='Roy Emerson';

Question: At what age did Roy Emerson complete the Grand Slam?
SQL: SELECT MAX("age") FROM "men_s_singles" WHERE "player"='Roy Emerson';