Solution: Eastern Orthodox Church used the Byzantine calendar from c. 691 to 1728. The Byzantine Empire used the Byzantine calendar from c. 988 to 1453.
Answer: yes
Question: Did the Eastern Orthodox Church and the Byzantine Empire ever use the same calendar?

Reasoning & answer: Some twins are born right before the New Year, and right after the New Year. There are some twins, implanted through IVF, who are born decades apart.
no
Question: Are twins always born during the same year?

CoT and answer: Ivan the Terrible was the Tsar of Russia from 1530 to 1585. The Byzantine calendar was the official calendar of the Russian government from 988 to 1700. The Tsar was the leader of the Russian government.
yes
Do reverse engineering and find the question: Did Ivan the Terrible use the Byzantine calendar?

Solution: Casio's first invention was the yubiwa pipe. The yubiwa pipe was a ring worn that held a cigarette in place worn on the finger. Ankles are several inches thicker than fingers.
Answer: no
Question: Could Casio's first invention be worn around the ankle?

Reasoning & answer: Asian black bear are a species of bear found in asia. Asian black bear don't have opposable thumbs. Chopsticks are eating utensils use requires opposable thumbs.
no
Question: Can an Asian black bear use chopsticks?

CoT and answer: Groundhog day takes place on February second. New York is typically very cold in February.
yes
Do reverse engineering and find the question:
Would most school children in New York be wearing jackets on groundhog day?