Misc: What's the circulation of winds around a low pressure system called?

Questions

Pinchbeck is an alloy of copper and what else?

Who was the democratically elected President of Chile killed during a military coup in 1973?

Generals Gowon, Abasanjo and Abacha have all been leaders of which African State?

In which country was the first soccer World Cup held?

Which novel features Room 101?