Hello, could you please review my code ?

function print(message) {
  document.write(message);
}

var questions = [
  ['How many states are in the United States ?',50],
  ['How many legs does a spider have ?',8],
  ['What color the sky have ?','blue'] 
]

/*
return array with two arrays 1. with correct answers and  2. with wrong 
*/ 
function quiz(questions) {
  var correct = [];
  var wrong = [];
  for ( var i = 0; i < questions.length ; i += 1) {
    if (questions[i][1] == prompt(questions[i][0])) {
      correct.push(questions[i])
    } else {
      wrong.push(questions[i])
    }
  }
  var answers = [];
  answers.push(correct,wrong);
  return answers;
}

/* 
Putting together html 
1. number correct answers (answers[0].length) 
2. questions correct 
3. questions wrong
*/
function inToHtml(answers) { 
  var html = '';
  html += '<h3> You got ' + answers[0].length + ' question(s) right. </h3>'
        + '<h2> You got these questions correct: </h2>'
        + '<ol>';
  for ( var i = 0; i < answers[0].length ; i += 1 ) {
    html += '<li>' + answers[0][i][0] + '</li>';
  }
  html += '</ol>' 
        + '<h2> You got these questions wrong: </h2>'
        + '<ol>';
  for ( var i = 0; i < answers[1].length ; i += 1 ) {
    html += '<li>' + answers[1][i][0] + '</li>';
  }
  html += '</ol>';
  return html; 
}


print (inToHtml (quiz (questions)));