Question: Name the into service for DH1
SQL: SELECT "Into Service" FROM "1-29002641-1" WHERE "Number" = 'DH1';

Question: Name the withdrawn for Example and serial number 579
SQL: SELECT "Withdrawn" FROM "1-29002641-1" WHERE "Into Service" = 'Example' AND "Serial Number" = 579.0;

Question: Name the into service for DH2
SQL: SELECT "Into Service" FROM "1-29002641-1" WHERE "Number" = 'DH2';

Question: Name the most serial number for Feb 1994
SQL: SELECT MAX("Serial Number") FROM "1-29002641-1" WHERE "Scrapped" = 'Feb 1994';

Question: Name the number for 2004 scapped
SQL: SELECT "Number" FROM "1-29002641-1" WHERE "Scrapped" = '2004';