How Are You is the translation
Yes - "ja" (pronounced as in English "yeah"
No - "nein" (something like "nayn")
Fun fact: when you're not sure about an answer or when it's complicated, you can say "jein"
- Ist Jurassic Word ein guter Film? (is Jurassic world a goood movie?)
-Jein....
World War 2 officially started on September 1, 1939 when Germany invaded Poland and most other nations which were part of the British Empire and Commonwealth declared war on Germany.