Is Cantonese spoken in Japan?
Rationale first then the answer.
Cantonese is a dialect of Chinese language used in southern China. There is no relation to the Japanese language.. The answer is: no.

Does meat from cows fed only grass taste more like wild game?
Rationale first then the answer.
The food an animal eats throughout its lifetime affect the way the meat from it will taste. Grass-fed cows produce meat that tends to taste more mineral-dense. Wild game is known for a grassy, mineral taste.. The answer is: yes.

Were there fifty English kings throughout the Middle Ages?
Rationale first then the answer.
The Middle Ages was a period of history from 476-1453 AD. From 476 to 1453 ADthere were around 36 Kings of England including disputed claimants to the throne.. The answer is: no.