Misc: who realised a 1987 album called 'document'?

Questions

Very Big Guns - Where is the biggest calibre cannon?

Weather - Approximately how many times a minute does lightning strike the earth?

Weather - Which US state holds the record for most snowfall in a day, recorded February 7, 1916?

What is it - What is 9 metres high, 7 metres wide and 2,500 kilometres long?

Wines - Good Rhine wines are bottled in what colour bottles?