Can these 5 question appear randomly each time when we load the page?

function Quiz(questions) {
    this.score = 0;
    this.questions = questions;
    this.currentQuestionIndex = parseInt(Math.random()*4);
    this.questionsLeft = 5;
}

Quiz.prototype.guess = function(answer) {
    if(this.getCurrentQuestion().isCorrectAnswer(answer)) {
        this.score++;
    }
    this.currentQuestionIndex++;
    this.questionsLeft--;
};

Quiz.prototype.getCurrentQuestion = function() {    
    if (this.currentQuestionIndex == questions.length){
        if(this.questionsLeft >= 1){
            this.currentQuestionIndex = 0;
        }
    }
    return this.questions[this.currentQuestionIndex];
};

Quiz.prototype.hasEnded = function() {
    return this.questionsLeft == 0;
};