Q--Was 1941 Operation Barbarossa related to The Crusades?
A--My step-by-step reasoning: Operation Barbarossa referred to the 1941 German invasion of the Soviet Union. Frederick Barbarosa was the Holy Roman Empire that drowned while marching his army to The Crusades. The Holy Roman Empire was a medieval empire that ruled over lands including what became modern Germany.
So, the answer is yes.

Q--Do many fans of J.K Rowling know who Alan Rickman is?
A--My step-by-step reasoning: J.K Rowling wrote the Harry Potter series. Alan Rickman performed the role of Severus Snape throughout all 8 Harry Potter films.
So, the answer is yes.

Q--Was Moon Jae-in born outside of Khanbaliq?
A--My step-by-step reasoning: Khanbaliq was the winter capital of the Mongol Empire. Khanbaliq was located at the center of what is now modern day Beijing, China. Moon Jae-In was born in Geoje, South Korea.
So, the answer is yes.

Q--Does a Trek 9000 require an anchor in order to park?
A--
My step-by-step reasoning: A Trek 9000 is a mountain bike. An anchor is used on water borne vehicles like boats.
So, the answer is no.