What festivals are there?
select festival_name from festival_detail
What is the audience size for each of these festivals?
select festival_name, num_of_audience from festival_detail
Which of these festivals has the largest audience?
select festival_name from festival_detail where num_of_audience = (select max(num_of_audience)from festival_detail)
Where is this festival located?
select location from festival_detail order by num_of_audience desc limit 1