Question: who is the athlete when the time is less than 11.13 and the country is Belgium?
SQL: SELECT "Athlete" FROM "2-18568955-3" WHERE "Time" < 11.13 AND "Country" = 'Belgium';

Question: who is the athlete when the rank is less than 13, time more than 11.13, country is Bahamas and the heat more than 2?
SQL: SELECT "Athlete" FROM "2-18568955-3" WHERE "Rank" < 13.0 AND "Time" > 11.13 AND "Country" = 'Bahamas' AND "Heat" > 2.0;

Question: what is the heat when the athlete is Anita Pistone?
SQL: SELECT SUM("Heat") FROM "2-18568955-3" WHERE "Athlete" = 'Anita Pistone';

Question: how many times is the rank more than 29, the athlete is barbara pierre and the heat less than 5?
SQL: SELECT COUNT("Time") FROM "2-18568955-3" WHERE "Rank" > 29.0 AND "Athlete" = 'barbara pierre' AND "Heat" < 5.0;