text: -- SELECT basics
  
  -- 1) Modify it to show the population of Germany
  SELECT population FROM world
      WHERE name = 'Germany'
    
  -- 2) Show the name and the population for 'Sweden', 'Norway' and 'Denmark'.
  SELECT name, population FROM world
    WHERE name IN ('Sweden','Norway','Denmark');
    
  -- 3) Modify it to show the country and the area for countries with an area between 200,000 and 250,000.
  SELECT name, area FROM world
    WHERE area BETWEEN 200000 AND 250000
  