The correct answer is, what do you want it to be in today’s modern math. Kind of like this:
CEO is hiring a CPA. He has three candidates. He asks the first I have one question for each of you. Answer correctly, you are hired. So he asks, what is 2+2. First lady jumps up and says, 4, so easy. CEO says, wrong answer, go. Next guy says it must be a trick question. Hum, perhaps 5!. CEO says, lame answer, go. Final candidate says, the correct answer is, what do you want it to be? YOUR HIRED.
I would hire that person, Mouton!