why am i getting a browser error on line 1

var correct = 0;

//questions
var qone = prompt("What is the most Famous phrase in typography");
if (qone.toUpperCase === "THE QUICK BROWN FOX JUMPED OVER THE       LAZY DOG") {correct+= 1;}


var qtwo = prompt("what is 2+2");
if (qtwo.parsInt === 4 ) {correct+= 1;}



var qthree = prompt("If you were going 80 mi per hour; how long would it take to 80 miles?");
if (qthree.toUpperCase()==="one hour"|| qthree.toUpperCase== "1 HOUR") {correct+= 1;}


var qfour = prompt("3+3");
if (qfour.parseInt() === 6) {correct+= 1;}


var qfive = prompt("5-5");
if (qfive.parseInt() === 0 ) {correct+= 1;}

//output results
document.write("<p> You got " + correct + "out of 5 questions correct.</p>")

//output rank

if ( correct === 5){
         document.write( "<p><strong>You earned a gold crown! </strong></p>");