Gaokao (China): Intense college entrance exam determining students' futures, known for its high difficulty.
UPSC Civil Services Exam (India): Highly competitive exam for India's prestigious civil services, with extensive syllabus.
All Souls Prize Fellowship Exam (UK): Oxford's challenging fellowship exam, famous for its demanding essay questions.
Chartered Financial Analyst (CFA): Rigorous finance exam series, known for its low pass rates and comprehensive content.
GATE (India): Graduate Aptitude Test in Engineering, crucial for postgraduate admissions and public sector jobs.
Master Sommelier Diploma Exam: Elite wine expertise exam with a notoriously high failure rate and extensive practical tests.
California Bar Exam (USA): One of the toughest bar exams, essential for practicing law in California.
Mensa IQ Test: Challenging test designed to identify individuals with exceptionally high intelligence and problem-solving skills.