Is a railroad engineer needed during NASCAR events?
Railroad engineers work on trains and railway systems. NASCAR events feature automobile races.
The answer is no.

Would Dante have hypothetically placed Nostradamus in 3rd Circle of Hell?
Nostradamus was a famous seer and court astrologer. Dante's 3rd Circle of Hell is reserved for gluttons. The 8th Circle of Hell is reserved for frauds. Astrology was seen as a valuable skill during Dante's lifetime. Dante places the mystic and prophet Joachim of Flora in the heaven of the sun.
The answer is no.

Do some home remedies result in your skin color turning blue?
Colloidal silver is a popular alternative treatment/home remedy that is used by some people. Ingestion of colloidal silver in high amounts can tint the skin blue.
The answer is yes.

Would it be wise to bring a robusto into Central Park Zoo?
A robusto is a short, fat cigar that is very popular in America. The Central Park Zoo has several rules including: no feeding the animals and no smoking. NYPD's 19th precinct is only an 11 minute walk away from the Central Park Zoo.
The answer is no.