Whatever is dull is stupid. This knife is extremely dull. Therefore, this knife is extremely stupid.
A) Amphiboly.
B) Begging the question.
C) Equivocation.
D) No fallacy.
E) Composition.

Question

Quizplus · Accepted Answer

The fallacy here is equivocation, which occurs when a word is used in two different senses in an argument. In this case, "dull" is used to mean both "not sharp" and "stupid," which are two different meanings of the word.

Whatever Is Dull Is Stupid