Wild Card
Geography: How many countries are there in the United Kingdom?
There are 4 different countries in the United kingdom. They are England, Scotland, Wales and Northern Ireland. The UK splitted up into four countries in 1922 and have been like that ever since.
Sports: Which country has won the most world cups in football history? How many times did they win it?
Brazil is the country with the most world cup wins. They won it 5 times.
Pop culture: What is the most played song in the world?:
The most played song at the moment is Blinding Lights (2019) by Canadian singer the Weeknd
Who invented the radio, the Hydroelectric power and the Alternating current?
It was Nikola Tesla, many consider Nikola Tesla (1856-1943) the true inventor of the radio, Guglielmo Marconi (1874-1937) only was the one who presented the patent in 1904.
History: In what year did Maria Cristina's regency end?
Her regency started in 1833 taking the place of Isabel who was too young to rein and it ended in 1840. When her regency ended Espartero took her place because there was a revolution that made her resign.