No ManchesterUnited can not win the world cup. As they are a English club, they can only win the Champion League.
They have never won a club world cup trophy.
England won the FIFA Club World Cup 2008.
Barcelona won the 2010/2011 FIFA Club World Cup.
There was no FIFA World Cup in 2013. However, if you are referring to the 2013 FIFA Club World Cup, then it was won by Bayern Munich.
Spain won the world cup in the year 2010.
Once. Their GK was Edwin van der Sar.
The FA cup is a club competition. It was won by Chelsea in 1970. Brazil won the World cup in 1970.
Manchester United is a club team in the English Premier League. Only International teams can win the world cup. But they have won the FIFA Club World Cup once in 2008
As a club team, they don't get to play in the World Cup. They have played in the World Club Championship though, losing to Sao Paulo in 1992 (Intercontinental Cup) and Internacional in 2006 (World Club Cup).
None, yet.
They can't they are a club not a country. Only countries enter the world cup.
In the 2011 world cup YUVRAJ has the won the most man of the match awards. He has won 4/8 Man of the match awards.