CREATE TABLE table_53956 ("Rank" TEXT, "Name" TEXT, "Headquarters" TEXT, "Revenue  ( Mil.\\u20ac ) " TEXT, "Profit  ( Mil.\\u20ac ) " TEXT, "Employees  ( World ) " FLOAT)

Which HQ is associated with a number of employees of 100?
SELECT "Headquarters" FROM table_53956 WHERE "Employees (World)" = '100'
SELECT "Headquarters" FROM "table_53956" WHERE "Employees (World)" = '100'