1. Name the only superhero comic to win the Hugo Award.

2. In what way is the Republic of Kalmykia - a federal subject of the Russian Federation - unique among European states?

3. Fill in the blanks: ______, ______, ______, ______ & umami.

4. In energy circles, what does the term 'Negawatt' refer to?

5. Who is the first Afro-American to appear solo on a circulating US coin?

For the answers, please visit: ten things i didn't know until last week.