Q: Are monks forbidden from engaging in warfare?
A: Monks are members of religious orders that usually take vows of poverty, chastity, and obedience. The Knights Templar were a religious order that fought during the Crusades and captured Jerusalem in 1099. Buddhist Shaolin monks developed very powerful martial arts skills, have defended temples during conquests.
The answer is no.

Q: Does Andrew Johnson's presidential number exceed Elagabalus's Emperor number?
A: Andrew Johnson was the 17th president of the United States. Elagabalus was the 25th Roman Emperor.
The answer is no.

Q: Could Jamie Brewer have attended the United States Naval Academy?
A: Jamie Brewer is a famous actress with down syndrome. Individuals with down syndrome are disqualified from military service.
The answer is no.

Q: Did Ivan the Terrible use the Byzantine calendar?
A:
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.
The answer is yes.