India's IIT-JEE is a tough math, physics, and chemistry exam. JEE Main and JEE Advanced are the two levels of the test.
The UPSC Civil Services Examination chooses Indian government administrators. The Preliminary, Mains, and Interview exams examine candidates' understanding of current events, history, economics, and politics.
China's Gaokao college entrance exam is one of the world's hardest. Math, Chinese, and languages are on the exam. The Gaokao determines college and job chances.
Law school graduates in the US take the Bar Exam to become licensed lawyers. Contracts, civil procedure, and criminal law are tested on the state-specific exam.
The Mensa IQ Test is a standardized test of intelligence and cognition. The test measures spatial reasoning, memory, and logic in those with IQs above 2%.