X Share on Facebook Share with your friends to see their results! We’ve Collected The 15 Hardest IQ Questions. Prev Article Next Article How many can you answer correctly? Time to get your brain juices flowing with the hardest IQ questions we have, all in one quiz. Share your score with your friends and challenge them to beat your score. Prev Article Next Article More Quizzes Solve This Tricky Problem And Your IQ Is 159 Only People With High IQ Can Read These Erased Words Can You Pass This Basic Memory Test? Can You Pass An Elementary IQ Test? The Hardest Riddles You’ll Ever Try To Solve Is Your Brain Easily Confused? Only 21% Of Adults Passed This Elementary IQ Test Can You Answer These 13 Kids’ Riddles That Are Surprisingly Hard For Grown-Ups? Is Your Mind Strong Enough to Handle These Optical Illusions? What’s Popular Now