Why does .includes return false?

Question

JavaScript

The problem is that .includes returns false when checking for the presence of an array element that the user should enter, even though this element is in the array

var answers = [
  ["Зимой и летом одним цветом.", "елка", "ель"],
  ["Речка спятила с ума — по домам пошла сама." , "водопровод" , "канализация"],
  ["Орехов не ест, сахара не просит, а щипцы с собой носит." , "рак" , "краб"]
  ];
  var trueAnswers = 0
  var puzzle = 0
  function findAnswer(userInput){
    if (answers.includes(userInput, 1)){
    //возвращает false при проверке элемента 
      puzzle++
      trueAnswers++
      return alert("Вы угадали.")
    } else {
      puzzle++
      return alert("Вы не угадали.")
    }
  }
  for (var i = 0; i < 3; i++){
    var userInput = prompt((answers[puzzle][0])).toLowerCase()
    findAnswer(userInput)
  }

Answer 1

Includes returns false when checking for the presence of an array element if there is no such element in the array .
What you are checking you did not provide, so this is all that can be answered for such a question.
Actually, of course, the reason is that you're checking an array of arrays for a string, but that doesn't change the need to ask questions normally.
You need to change the data structure and separate questions from answers. And in findAnswer, also pass the number of the question in order to search only among its answers. Well, or immediately transfer an array of correct answers there.