Table: lithuanian_national_badminton_championships
Columns: year
mens_singles
womens_singles
mens_doubles
womens_doubles
mixed_doubles

Question: What was the first year of the Lithuanian National Badminton Championships?
SQL: SELECT MIN("year") FROM lithuanian_national_badminton_championships

Question: How many years did aivaras kvedarauskas juozas spelveris participate in the men's doubles?
SQL: SELECT COUNT("year") FROM lithuanian_national_badminton_championships WHERE "mens_doubles" = 'Aivaras Kvedarauskas Juozas Spelveris'