yes
Question and rationale: The question is: Are some Brazilian Navy ships built in Britian?
The Brazilian Navy stated in 2018 that they had purchased the helicopter carrier ship HMS Ocean. HMS stands for "His/Her Majesty's Ship", which is emblazoned on ships of the British Royal Navy. Some of the ships in the Brazilian Navy are guided missile frigates built in Britian.

yes
Question and rationale: The question is: At a presentation about post traumatic stress disorder, would Ariana Grande be a topic of relevance?
Ariana Grande was performing in Manchester in 2017 when explosives were set off in an act of terrorism. Ariana Grande has spoken openly about her trauma experience and her PTSD regarding the Manchester Bombing.

yes
Question and rationale:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The question is: Were gladiators associated with the Coloseum?
The Colosseum was a stadium in the ancient city of Rome, large by even today's standards. During the Roman era, it was primarily used to host large spectacles including gladiatorial combat, mock battles, and executions.