Q--Do most people only memorize slightly over half of their ZIP code?
A--My step-by-step reasoning: ZIP codes in the US are 9 digits in length. Most forms in the US only require and have space for the first 5 digits of a ZIP code?.
So, the answer is yes.

Q--Did the Eastern Orthodox Church and the Byzantine Empire ever use the same calendar?
A--My step-by-step reasoning: Eastern Orthodox Church used the Byzantine calendar from c. 691 to 1728. The Byzantine Empire used the Byzantine calendar from c. 988 to 1453.
So, the answer is yes.

Q--Can binary numbers and standard alphabet satisfy criteria for a strong password?
A--My step-by-step reasoning: The criteria for a strong password according to cybersecurity company Avast is: at least 15 characters. uppercase letters. lowercase letters. numbers. and symbols. The standard alphabet contains twenty six letters but no special characters. Binary numbers only contain 0 and 1.
So, the answer is no.

Q--Is the Louvre's pyramid known for being unbreakable?
A--
My step-by-step reasoning: The Pyramid at the Louvre is made of glass and metal. The Louvre Pyramid glass is 10mm thick. 10mm thick glass is not unbreakable.
So, the answer is no.