SELECT social_sec_leeds FROM table_name_23 WHERE fixtures_sec = "n/a" AND general_sec = "n/a" AND season = "2005–2006"
Beri nama Social Sec Leeds memiliki perlengkapan Sec of N/A, dan SEC umum N/A, dan musim 2005-2006?
CREATE TABLE table_name_23 (social_sec_leeds VARCHAR, season VARCHAR, fixtures_sec VARCHAR, general_sec VARCHAR)