Question: Is the US drinking age a Fibonacci number?, Answer:Yes, Description of Fibonacci number: integer in the infinite Fibonacci sequence, Fact1: The US drinking age is 21., Fact2: 21 is a Fibonacci number.
Step1: What is the US drinking age?, Step2: What are the first 20 Fibonacci numbers?, Step3: Is #1 included in #2?, Wikipedia page for step 1: US drinking age, Wikipedia page for step 2: Fibonacci numbers, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False