$(".questions").children().hide();
$(" div.questions > div:nth-child("+history[get_number]+")").fadeIn();

$(function(){
    $(document).on('click', '.questions > div', function(){
        if( $(this).is(':last-child') ){
            alert('Last Question');
        } else {
            alert('Regular Question');
        }
    });
});

$("div.questions > div:last").unbind('click');

$(document).on('click', '.questions > div:not(:last-child)', function(){
    alert('Regular Question');
});

$(document).on('click', '.questions > div:last-child', function(){
    alert('Specific Question');
});