airbus aircraft first flight dates.

How many countries do you know? In this quiz, you've got 15:00 to name as many as you can. Go!

Guess the world's twenty most-traded currencies, and the countries or special regions that issue them.

Name the twelve countries that have the most people who speak German as their native language.

For each of these well-known people, try to guess the year in which they died plus or minus five years.