[2] During his freshman year at CMU, he wrote the lyrics and created the magic effects for the musical comedy, Kije!, in collaboration with author Scott McGregor and composer Arthur Darrell Turner.

At one of these conferences, he met well-known magician and skeptic James Randi, who greatly influenced Benjamin's decision to perform Mathemagics shows for live audiences.

Randi invited him to perform his mathematical tricks on a television program called Exploring Psychic Powers Live, co-hosted by Uri Geller.

[5] Benjamin regularly performs his Mathemagics program for live audiences at schools, colleges, conferences, and even at The Magic Castle in Hollywood, California.

[6] These shows feature Benjamin performing mathematical feats like rapidly squaring numbers with up to five digits and correctly identifying the day of the week on which audience members were born based on their birth dates.

He has been profiled in over 100 articles in periodicals such as The New York Times, People Magazine, USA Today, and Scientific American.