Table: aditya_mehta_ratings
Columns: 2008_09
2009_10
2010_11
2011_12
2012_13

Question: What 2010/ 11 has not held as 2009/ 10, and 1r as the 2012/ 13?
SQL: SELECT "2010_11" FROM aditya_mehta_ratings WHERE "2009_10" = 'not held' AND "2012_13" = '1r'

Question: When 2011/ 12 is non-ranking, what is the 2009/ 10?
SQL: SELECT "2009_10" FROM aditya_mehta_ratings WHERE "2011_12" = 'non-ranking'

Question: When the 2008/ 09 has non-ranking what is the 2009/ 10?
SQL: SELECT "2009_10" FROM aditya_mehta_ratings WHERE "2008_09" = 'non-ranking'