What's wrong with my countdown?

//Countdown fails, displays only "5"; all other code works

//With the exception of question one, 
//correct values are set to 
//upper case
var correct1 = 12;
var correct2 = "JAVASCRIPT";
var correct3 = "CANON";
var correct4 = "BLUE";
var correct5 = "TORONTO"

//By default, all question values are set to false
var question1 = false;
var question2 = false;
var question3 = false;
var question4 = false;
var question5 = false;

//Countdown for questions left
var countdown = 5;
var questionsLeft = ' [' + countdown + ' questions left]';

//Intro
alert("Welcome To The Crown Quiz.");
alert("Please Answer The Following Questions.");

//Questions Section
//conditional statements will change correct (matching) answers to "true"

//first question is a parsed integer
var guess1 = parseInt(prompt("How many eggs in a dozen?" + questionsLeft));
countdown -= 1;
  if (guess1 === correct1) {
    question1 = true;
  }

var guess2 = prompt("What language is this code written in?" + questionsLeft);
countdown -= 1;
  if (guess2.toUpperCase() === correct2) {
    question2 = true;
  }

var guess3 = prompt("The Rebel Camera series are made by _____" + questionsLeft);
countdown -= 1;
  if (guess3.toUpperCase() === correct3) {
    question3 = true;
  }

var guess4 = prompt("Why is the sky ______?" + questionsLeft);
countdown -= 1;
  if (guess4.toUpperCase() === correct4) {
    question4 = true;
  }

//Question 5 doesn't get a "countdown -= 1;"
var guess5 = prompt("Type This: Toronto");
  if (guess5.toUpperCase() === correct5) {
    question5 = true;
  }

//Testing purposes only
//to ensure conditional statements work
console.log(question1);
console.log(question2);
console.log(question3);
console.log(question4);
console.log(question5);

//Results Section
alert("Thank you for playing. Click ok for results.");

//declaring starting score
var score = 0;

//score is updated in this section
//of conditional statements and output
if (question1) {
  score += 1;
  document.write("<p>Question one was right!</p>");
  } else {
  document.write("<p>Question one was wrong.  You should have said: " + correct1 + ".</p>");
  }
if (question2) {
  score += 1;
  document.write("<p>Question two was right!</p>");
  } else {
  document.write("<p>Question two was wrong.  You should have said: " + correct2 + ".</p>");
  }
if (question3) {
  score += 1;
  document.write("<p>Question three was right!</p>");
  } else {
  document.write("<p>Question three was wrong.  You should have said: " + correct3 + ".</p>");
  }
if (question4) {
  score += 1;
  document.write("<p>Question four was right!</p>");
  } else {
  document.write("<p>Question four was wrong.  You should have said: " + correct4 + ".</p>");
  }
if (question5) {
  score += 1;
  document.write("<p>Question five was right!</p>");
  } else {
  document.write("<p>Question five was wrong.  You should have said: " + correct5 + ".</p>");
  }

//Ranking section
if (score === 0) {
var message = "<p>You didn't get any answers right.  Better luck next time.</p>";  
}

else {
 //how range values are handled in JavaScript, the &&

 //this is also a nested series of conditional statements
  if (1 <= score && score <= 2) {
    var crownColor = "bronze";
    }
  else if (3 <= score && score <= 4) {
    var crownColor = "silver";
  }
  else if (score === 5){
    var crownColor = "gold";
  }
//output message if any of the nested series is true    
var message = "<p>You got " + score; 
message += " answers right, so you get a " + crownColor;  
message += " crown. </p>";

}

//"message" variable used for both zero value and nested series
document.write(message);