They have played 7 times
Yes. He played 52 times for Ireland.
Yes. Ireland is one of the world's leading rugby union nations.
He never played international rugby
Australia Ireland Italy Russia USA
well Germany don't even play rugby league
Once
Yes, Ireland plays many sports, too many to list in full. Examples would include Gaelic Football, Hurling, soccer, rugby, golf and many, many others.
24 times
new zealand rwc 2011
He played for 4 teams during his rugby career: Ireland, UCC, Cork Constitution and Munster.
As of March 2015, they last played them in November 2013.
55 test matches from 1957 to 1971