Question: Which Mac OSX's GNU/Linux was Yes when Windows was No?
SQL: SELECT "Mac OS X" FROM "2-1163160-2" WHERE "GNU/Linux" = 'Yes' AND "Windows" = 'No';

Question: Which Mac OSX had No haiku and a client that was DC++?
SQL: SELECT "Mac OS X" FROM "2-1163160-2" WHERE "Haiku" = 'No' AND "Client" = 'DC++';

Question: Which GNU/Linux had No haiku and a client of AirDC++?
SQL: SELECT "GNU/Linux" FROM "2-1163160-2" WHERE "Haiku" = 'No' AND "Client" = 'AirDC++';

Question: Which client had No GNU/Linux?
SQL: SELECT "Client" FROM "2-1163160-2" WHERE "GNU/Linux" = 'No';