Question: How many tickets were there sold/available in Barcelona?
SQL: SELECT "Tickets Sold / Available" FROM "2-12556186-2" WHERE "City" = 'Barcelona';

Question: How many tickets were sold/available when the gross revenue (2011) was $366,916?
SQL: SELECT "Tickets Sold / Available" FROM "2-12556186-2" WHERE "Gross Revenue (2011)" = '$366,916';

Question: How many tickets were sold/available when the gross revenue (2011) was $5,948,390?
SQL: SELECT "Tickets Sold / Available" FROM "2-12556186-2" WHERE "Gross Revenue (2011)" = '$5,948,390';

Question: What was the gross revenue (1986) when there were tickets sold/available of 24,000 / 24,000 (100%)?
SQL: SELECT "Gross Revenue (1986)" FROM "2-12556186-2" WHERE "Tickets Sold / Available" = '24,000 / 24,000 (100%)';