> We recently got word that someone fitting Carmen Sandiego's description has been traveling through Southern Europe. She's most likely traveling someplace where she won't be noticed, so find the least populated country in Southern Europe, and we'll start looking for her there.

SELECT name, population FROM country WHERE
region = 'Southern Europe'
ORDER BY
population;

Answer: Vatican City

> Now that we're here, we have insight that Carmen was seen attending language classes in this country's officially recognized language. Check our databases and find out what language is spoken in this country, so we can call in a translator to work with you.

SELECT name, population, code FROM country WHERE
region = 'Southern Europe'
ORDER BY
population;

SELECT language
FROM countrylanguage
WHERE countrycode = 'VAT' AND
isofficial = true;

Answer: Italian

> We have new news on the classes Carmen attended: our gumshoes tell us she's moved on to a different country, a country where people speak only the language she was learning. Find out which nearby country speaks nothing but that language.

SELECT countrycode
FROM countrylanguage
WHERE language = 'Italian' AND
percentage = 100;

SELECT name
FROM country
WHERE code = 'SMR';

Answer: San Marino

> We're booking the first flight out: maybe we've actually got a chance to catch her this time. There are only two cities she could be flying to in the country. One is named the same as the country – that would be too obvious. We're following our gut on this one; find out what other city in that country she might be flying to.

SELECT name
FROM city
WHERE countrycode = 'SMR';

Answer: Serravalle

> Oh no, she pulled a switch: there are two cities with very similar names, but in totally different parts of the globe! She's headed to South America as we speak; go find a city whose name is like the one we were headed to, but doesn't end the same. Find out the city, and do another search for what country it's in. Hurry!

SELECT name, countrycode
FROM city
WHERE name LIKE '%Serra%';

SELECT name
FROM country
WHERE code = 'BRA';

Answer: Serra, Itapecerica de Serra, Tabaco de Serra in Brazil

> We're close! Our South American agent says she just got a taxi at the airport, and is headed towards the capital! Look up the country's capital, and get there pronto! Send us the name of where you're headed and we'll follow right behind you!

SELECT capital
FROM country
WHERE name = 'Brazil';

Answer: 211

> She knows we're on to her: her taxi dropped her off at the international airport, and she beat us to the boarding gates. We have one chance to catch her, we just have to know where she's heading and beat her to the landing dock.
>
> Lucky for us, she's getting cocky. She left us a note, and I'm sure she thinks she's very clever, but if we can crack it, we can finally put her where she belongs – behind bars.

> -- Our play date of late has been unusually fun –
> -- As an agent, I'll say, you've been a joy to outrun.
> -- And while the food here is great, and the people – so nice!
> -- I need a little more sunshine with my slice of life.
> -- So I'm off to add one to the population I find
> -- In a city of ninety-one thousand and now, eighty five.

SELECT name
FROM city
WHERE population = 91084;

Answer: Santa Monica