Tariff war with Canada, half-empty German gas tanks — how well did you follow this week's economy news?

Eight fresh economy stories, eight concrete questions — test how sharp you were this week.

1. What tariff rate did Trump impose on Canadian goods while the two sides negotiate a trade deal?
2. By how many days did Trump postpone the tariff deadline?
3. How did UK retail sales perform in July despite the heatwave and the football World Cup?
4. What percentage full are Germany's gas storage facilities in mid-August?
5. By how much did Hungary's wheat harvest fall this year due to the severe drought?
6. According to the article, roughly what share of world grain exports do Russia and Ukraine together provide?
7. How large was the UK government's July budget deficit, versus analysts' expectation of a balance?
8. What is the UK's national debt as a share of GDP?