I did it, but I am feeling my code is weak

var question = [
    ['What is the capital of UK?', 'london'],
    ['What is the biggest state in the USA?', 'alaska'],
    ['How many states in USA?', '50'],
    ['What is the most popular car in Japan?', 'toyota'],
    ['What is the capital of France', 'paris'],
]; 


var answer = [];


for (var i = 0 ; i < question.length ; i++) {
  answer.push (prompt('Question '+(i+1)+': '+question[i] [0]).toLowerCase());

}

if (answer [0] === 'london') {
    q1 = 1
} else {
    q1 = 0
} if (answer [1] === 'alaska') {
    q2 = 1
} else {
    q2 = 0
} if (answer [2] === '50') {
    q3 = 1
} else {
    q3 = 0
} if (answer [3] === 'toyota') {
    q4 = 1
} else {
    q4 = 0
} if (answer [4] === 'paris') {
    q5 = 1
} else {
    q5 = 0
}

var totalans = q1+q2+q3+q4+q5;

document.write('<p>'+'You Got '+totalans+' Questions Right of '+question.length+'</p>');

document.write('<h2>'+'You Got This Questions Correct:'+'</h2>');

if (q1 === 1) {
document.write('<p>'+question[0] [0]+'</p>')
}
if (q2 === 1) {
document.write('<p>'+question[1] [0] +'</p>')
}
if (q3 === 1) {
document.write('<p>'+question[2] [0]+'</p>')
}
if (q4 === 1) {
document.write('<p>'+question[3] [0]+'</p>')
}
if (q5 === 1) {
document.write('<p>'+question[4] [0]+'</p>')
}

document.write('<h2>'+'You Got This Questions Wrong:'+'</h2>');

if (q1 === 0) {
document.write('<p>'+question[0] [0]+'</p>')
}
if (q2 === 0) {
document.write('<p>'+question[1] [0] +'</p>')
}
if (q3 === 0) {
document.write('<p>'+question[2] [0]+'</p>')
}
if (q4 === 0) {
document.write('<p>'+question[3] [0]+'</p>')
}
if (q5 === 0) {
document.write('<p>'+question[4] [0]+'</p>')
}