Q--Is it safe to eat hair?
A--My step-by-step reasoning: Hair is made of keratin. Food manufacturers use L-cysteine as a food additive. L-cysteine is made from keratin.
So, the answer is yes.

Q--Would keelhauling be a fair punishment under the Eighth Amendment?
A--My step-by-step reasoning: Keelhauling was a severe punishment whereby the condemned man was dragged beneath the ship's keel on a rope. Keelhauling is considered a form of torture. Torture is considered cruel. The Eighth Amendment forbids the use of "cruel and unusual punishment".
So, the answer is no.

Q--Did Metallica band members cutting their hair hurt their sales?
A--My step-by-step reasoning: Metallica famously cut their hair in 1996 which caused a huge divide in their fanbase. Metallica's best selling album, The Black Album, was released in 1991 and has sold over 20 million copies. Since 1996, Metallica have released 5 studio albums. Metalica's 5 studio albums since 1996 have sold around a combined 14 million copies.
So, the answer is yes.

Q--Would the United States Military Academy reject an applicant with multiple sclerosis?
A--
My step-by-step reasoning: Multiple Sclerosis is a progressive condition affecting the brain and spinal chord. The US Military Academy does not give waivers for serious progressive conditions.
So, the answer is yes.