Context: Welsh sides that play in English leagues are eligible, although since the creation of the League of Wales there are only six clubs remaining: Cardiff City (the only non-English team to win the tournament, in 1927), Swansea City, Newport County, Wrexham, Merthyr Town and Colwyn Bay. In the early years other teams from Wales, Ireland and Scotland also took part in the competition, with Glasgow side Queen's Park losing the final to Blackburn Rovers in 1884 and 1885 before being barred from entering by the Scottish Football Association. In the 2013–14 season the first Channel Island club entered the competition when Guernsey F.C. competed for the first time.

Question: May Welsh clubs enter the competition? 
Answer: Welsh sides that play in English leagues are eligible,

Question: Has a Welsh team ever won a competition? 
Answer: Cardiff City (the only non-English team to win the tournament, in 1927)

Question: Have any other countries ever competed? 
Answer: other teams from Wales, Ireland and Scotland also took part in the competition,

Question: Why can't those countries compete? 
Answer: barred from entering by the Scottish Football Association.

Question: Has any other  country been allowed to enter the competition since? 
Answer: Channel Island club entered the competition when Guernsey F.C. competed for the first time.

Question: When was the League of Wales created?
Answer: Unanswerable

Question: What Welsh team has lost a tournament?
Answer: Unanswerable

Question: Which countries have never had a team compete?
Answer: Unanswerable

Question: What year were teams from Scotland, Wales, and Ireland barred from entering?
Answer: Unanswerable

Question: What season did the Channel Island club play for the last time?
Answer: Unanswerable