Table: iit_bombay_publications
Columns: school
location
pubs_2010
totals_06_10
rank_06_10
pubs_2011
totals_07_11
rank_07_11
world_ranking

Question: How many figures are there for Rank 07-11 when the world ranking is 4?
SQL: SELECT COUNT("rank_07_11") FROM iit_bombay_publications WHERE "world_ranking" = '4'

Question: How many figures are given for pubs 2011 in Chennai?
SQL: SELECT COUNT("pubs_2011") FROM iit_bombay_publications WHERE "location" = 'Chennai'