World toughest exam: Learn about the most challenging exams across

Learn about the most challenging exams across the globe, such as Gaokao, IIT-JEE Advanced, UPSC, ICAI CA/CMA, GATE and more. Compare their purpose, duration, marks, pass percentage and official links. Are the toughest exams in the world worth it? Taking the toughest exams in the world can be stressful and gruelling, but the rewards often outweigh the challenges. Succeeding in these exams can open doors to prestigious degree programmes which in turn lead to excellent career opportunities. Wondering about the toughest exams in the world as of 2025? Explore Gaokao, UPSC Civil Service Exam , Mensa, GRE, and others from our world's toughest exams list.