Table: yugoslav_badminton_champs
Columns: year
mens_singles
womens_singles
mens_doubles
womens_doubles
mixed_doubles

Question: What is the result of men's doubles when there was no competition?
SQL: SELECT "mixed_doubles" FROM yugoslav_badminton_champs WHERE "mens_doubles" = 'no competition'

Question: WHo won men's singles in 1994?
SQL: SELECT "mens_singles" FROM yugoslav_badminton_champs WHERE "year" = 1994

Question: Who won women's singles in 2001?
SQL: SELECT "womens_singles" FROM yugoslav_badminton_champs WHERE "year" = 2001