The venue of the 2014 Challenge Cup Final was Olympiastadion, Berlin.
The venue of the 2012 FA Cup Final was Wembley Stadium in London.
Australia defeated New Zealand 34-2 in the Rugby League World Cup grand final of 2013.
Yes, it can. FIFA have to choose it as a designated venue but Wembley will be able to hold all major Association Football games - Champions League Final, World Cup Final, etc.
Premier league season starts on 17th August 2013, ends on 11th May 2014. Europa league final 14th May, FA cup final 17th May, Champions league final 25th May, Fifa World cup finals 12th June - 13th July
Swansea City was the winner of the League Cup in 2013.
The Scottish League cup winners in 2013 were St. Mirren.