Improvments

// - keep track of the number of questions the user answered correctly.
var score = 0; 


//1.    It has to ask at least five questions.
var quetsion1 = prompt("Who was the first Finnish driver to win the world championship?");
var quetsion2 = prompt ("In 2005, the rules stated that teams were not allowed to change _____ during a grand prix? ");
var quetsion3 = prompt ("Who was the first driver to win a Grand Prix using a semi-automatic gearbox?");
var quetsion4 = prompt ("He was known as the voice of Formula 1 in the UK. Can you name him?");
var quetsion5 = prompt ("What nationality is Eddie Jordan? ");

// store the answers
var answer1 = "KEKE ROSBERG";
var answer2 = "TYERS";
var answer3 = "NIGEL MANSELL";
var answer4 = "MURRAY WALKER";
var answer5 = "IRISH";

// check the user input against answer
if (quetsion1.toUpperCase() === answer1){
  score += 1;
}

if (quetsion2.toUpperCase() === answer2){
  score += 1;
}

if (quetsion3.toUpperCase() === answer3){
  score += 1; 
}

if (quetsion4.toUpperCase() === answer4){
  score += 1; 
}

if (quetsion5.toUpperCase() === answer5){
  score += 1; 
}


/*
- provide a final message after the quiz, letting the user know the number of questions he or she got right.
- Rank the player.
*/
if(score === 5){
  alert ("congratulations you got " + score + " correct  amswers you won the gold crown");
}else if (score > 2 && score < 5){
  alert ("Thats greate you got " + score + " correct  amswers you won the silver crown");
} else if  (score > 0 && score < 3){
  alert ("you got " + score + " correct  amswers You won the bronze crown"); 
}else{
  alert ("Sorry you got " + score + " correct  amswers  no crown for you");
}  

if (quetsion1.toUpperCase() === answer1){
  alert ("Well done thats Correct");
  score += 1;
} else {
  alert ("Sorry the correct answer is" + answer1 );
}