Problem: Who has presented the BBC Radio 2 programme Sounds of the Sixties for over 20 years?
======
A: brian matthew

Problem: Which is the most southerly city to have hosted the Winter Olympics?
======
A: nagano

Problem: Commercial extraction is being explored of an important large-scale source of natural gas, called what ?
======
A: fire ice

Problem: The five 'K's feature in which religion?
======
A:
sikhism