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10 Toughest Exams in The World

10 Toughest Exams in The World

Imagine spending years preparing for an exam, only to learn that the pass rate is a meager 1%. Sounds nerve-wracking, doesn’t it? The world is full of examinations designed to challenge even the most brilliant minds, and today we’re diving deep into this labyrinth of high-stakes testing. In this blog, we’re pulling back the curtain on the 10 toughest exams from around the world. Whether you’re an aspiring lawyer, doctor, or financial analyst, this list has something for everyone. We’ll explore what makes these exams notoriously difficult, the unique characteristics that set them apart, and the lucrative career paths they unlock for those who conquer them.

UPSC Civil Services Exam (India)

The Union Public Service Commission (UPSC) Civil Services Exam is perhaps one of the most prestigious yet daunting exams in India. This multi-tiered exam is the gateway to coveted positions in the Indian Administrative Service (IAS), Indian Police Service (IPS), and various other civil services roles.

Why It’s Tough

  • Comprehensive Syllabus: The exam covers an extensive range of topics from history and geography to politics and current affairs.
  • Three Stages: Candidates must pass a preliminary exam, a mains exam consisting of nine papers, and finally a personality test or interview.
  • Cutthroat Competition: With millions of applicants every year and just a few hundred seats available, the acceptance rate is exceedingly low.
  • Pressure to Succeed: Given the high prestige associated with civil services jobs in India, the societal pressure adds another layer of difficulty.

Unique Characteristics

  • Lengthy Preparation: Most candidates spend 1-2 years in dedicated preparation.
  • Unpredictable Questions: The UPSC is known for its unpredictability; questions can range from highly analytical to opinion-based.
  • Emphasis on Ethics and Integrity: Unlike many exams, the UPSC includes papers on ethics and integrity to assess the moral calibre of future civil servants.

Mensa Admission Test

The Mensa Admission Test is the entrance exam for Mensa, an international society of individuals who have an IQ in the top 2% of the general population. The test aims to measure intelligence, rather than academic or professional skills, and is considered one of the most challenging IQ tests available.

Why It’s Tough

  • Narrow Selection: The test is designed to be so difficult that only about 2% of test-takers qualify for Mensa membership.
  • Various Forms: The Mensa test is not standardized and can come in various forms, including logic puzzles, math problems, and language assessments.
  • Time-Pressure: Most of the tests are timed, increasing the pressure on candidates.
  • No Preparation: Unlike other exams where candidates can prepare extensively, there are few ways to “prepare” for an IQ test, making it intimidating for many.

Unique Characteristics

  • Wide Age Range: Mensa tests are available for individuals as young as 10 years old, making it unique in its inclusivity of different age groups.
  • International Presence: Mensa is a global organization, so passing its test is often considered a universally recognized achievement.
  • Anonymity Option: Test-takers can choose to remain anonymous, receiving only the test results without any further obligation to join Mensa.
10 Toughest Exams in The World
10 Toughest Exams in The World

CFA (Chartered Financial Analyst) Examinations

The Chartered Financial Analyst (CFA) Examinations serve as the entryway into the world of professional finance and investment analysis. Administered by the CFA Institute, these exams are globally recognized and come in three levels, each more challenging than the previous.

Why It’s Tough

  • Comprehensive Curriculum: Covering topics from portfolio management to financial reporting, the syllabus is both vast and in-depth.
  • High Failure Rates: Even among the finance whizzes who take the exam, the pass rates often hover around just 40-50%.
  • Years of Commitment: Completing all three levels usually takes at least three years, involving hundreds of study hours for each level.
  • Ethical Component: Apart from technical skills, candidates are rigorously tested on ethics and professional standards.

Unique Characteristics

  • Global Recognition: A CFA charter is recognized worldwide and is often considered the gold standard in investment analysis.
  • Flexible Learning: Unlike academic programs, CFA candidates can study while working, although this flexibility often adds to the challenge.
  • Real-World Application: The exams focus heavily on practical applications of financial knowledge, rather than just theoretical concepts.

USMLE (United States Medical Licensing Examination)

The United States Medical Licensing Examination (USMLE) is a three-step examination for medical licensure in the United States. It assesses whether a candidate can apply medical knowledge, skills, and understanding of clinical science essential for the provision of patient care.

Why It’s Tough

  • Broad Spectrum of Medical Knowledge: From basic biomedical science to patient care, the scope is immense.
  • Three-Part Series: Each part or ‘Step’ intensifies in complexity, culminating in a final Step 3 that tests the ability to independently manage patient care.
  • High Stakes: A failing grade can heavily impact a medical career, making each step a high-pressure event.
  • Long Duration: The combined time for all three steps makes it one of the longest professional licensure exams.

Unique Characteristics

  • Patient Scenarios: The exam uniquely features computer-simulated patient scenarios to evaluate clinical skills.
  • Global Recognition: Although focused on the U.S., the exam is recognized in various countries as a standard for medical knowledge.
  • Step 2 CS: This part specifically tests clinical skills, including patient interaction, which is uncommon in most medical exams.

GAOKAO (China)

The Gaokao, or the National College Entrance Examination, is China’s primary standardized test required for admissions to undergraduate programs. It’s an annual exam that often determines the trajectory of one’s career and social standing, making it one of the most stressful and challenging tests in the world.

Why It’s Tough

  • Incredible Pressure: For many, the Gaokao is a once-in-a-lifetime opportunity, making it an emotionally draining experience.
  • Broad Curriculum: It covers a wide range of subjects including, but not limited to, mathematics, Chinese, and a foreign language.
  • Rigorous Scoring: The exam is scored out of a total of 750 points, and even a single point can dramatically affect college placement.
  • Cultural Significance: In China, Gaokao scores and subsequent university placements often dictate social standing, adding another layer of pressure.

Unique Characteristics

  • Security Measures: Due to the exam’s high-stakes nature, there are intense security measures, including identity checks and surveillance.
  • Two-Day Affair: The exam takes place over two full days, testing endurance and focus in addition to knowledge.
  • High Volume: With nearly 10 million students taking the test each year, the level of competition is astronomical.
10 Toughest Exams in The World
10 Toughest Exams in The World

IIT JEE Advanced

The Joint Entrance Examination (JEE) Advanced is the second and more difficult phase of the two-tier examination process for admission into the Indian Institutes of Technology (IITs), the most prestigious engineering schools in India. The exam is notorious for its complexity, assessing candidates on physics, chemistry, and mathematics.

Why It’s Tough

  • Highly Competitive: With over a million students taking the JEE Main (the preliminary exam), only the top scorers are eligible for the JEE Advanced.
  • Complex Questions: Unlike standardized tests, the questions often involve multiple concepts applied simultaneously.
  • Stringent Time Limits: Students have just three hours to complete each of the two papers, adding time management as another layer of difficulty.
  • Changing Exam Patterns: The format is not fixed and can change each year, making it harder to prepare.

Unique Characteristics

  • Two-Tier System: Qualifying the JEE Main is essential to even appear for the JEE Advanced, making it a two-step challenge.
  • Negative Marking: Incorrect answers can cost candidates marks, making guessing a risky strategy.
  • Relevance to Real-World Problems: The questions are often framed to simulate real-world engineering challenges.

Bar Exams (UK and US)

In the UK and the US, the Bar Examinations serve as the gateway to the legal profession. These exams assess a candidate’s understanding of law and their ability to practice it professionally. In the US, the Bar is a state-specific test, while in the UK, aspiring barristers take the Bar Professional Training Course (BPTC) assessments.

Why It’s Tough

  • Diverse Legal Topics: The exams cover a wide range of law subjects, from criminal law to torts, requiring an extensive understanding of different legal systems.
  • Analytical Skills: Candidates must display not only rote memorization but also critical thinking and analytical reasoning.
  • High-Stress Scenario: With a usually low pass rate, the stakes are high, which significantly adds to the stress levels.
  • Oral Components: In the UK, candidates also face oral examinations called “Vocational Components,” making the exam not just a written test.

Unique Characteristics

  • State-Specific: In the US, each state has its own Bar Exam, making mobility across states challenging for lawyers.
  • Pupillage: In the UK, passing the Bar is only the first step. Aspiring barristers then undergo a year of pupillage.
  • Multiday Testing: Both the UK and US exams span multiple days, testing not just knowledge but also stamina and mental resilience.

CCIE (Cisco Certified Internetwork Expert)

The Cisco Certified Internetwork Expert (CCIE) is the highest level of professional certification offered by Cisco. It’s considered one of the most prestigious and challenging certifications in the IT networking industry, focusing on advanced networking concepts and technologies.

Why It’s Tough

  • Technical Depth: The exam covers a myriad of complex topics, such as advanced routing, network security, and data center management.
  • Two-Part Exam: Candidates must first pass a written qualification exam before attempting an eight-hour lab examination.
  • Low Pass Rates: Due to its complexity, the pass rates for the CCIE are notoriously low, often below 30% for first-time test takers.
  • Expensive: Between study materials, exam fees, and possibly retakes, pursuing a CCIE is financially demanding.

Unique Characteristics

  • Real-World Simulation: The lab exam replicates real-world scenarios to test hands-on skills under timed conditions.
  • Global Recognition: CCIE certification is globally acknowledged, making certified professionals highly sought-after worldwide.
  • Continuing Education: Cisco requires certified experts to renew their certification every three years, ensuring they stay updated with evolving technologies.
10 Toughest Exams in The World
10 Toughest Exams in The World


The Graduate Aptitude Test in Engineering (GATE) is an exam conducted jointly by the Indian Institutes of Technology (IITs) and the Indian Institute of Science (IISc). This exam tests the comprehensive understanding of various engineering and science subjects and is used for admissions to postgraduate programs and for employment in public sector companies in India.

Why It’s Tough

  • Comprehensive Coverage: GATE covers a broad spectrum of engineering disciplines, from Mechanical to Computer Science.
  • Competitive Nature: With hundreds of thousands of aspirants each year, the competition level is exceptionally high.
  • Conceptual Understanding: Unlike exams that focus on rote learning, GATE tests in-depth understanding and application of engineering concepts.
  • Pressure to Perform: High GATE scores are often prerequisites for scholarships, elite academic programs, and high-paying public sector jobs, making it a high-stakes test.

Unique Characteristics

  • Multiple Applications: A good GATE score opens up academic, research, and professional avenues.
  • Validity: The GATE score is valid for three years, offering flexibility for academic and career planning.
  • Challenging Question Types: The exam includes a mix of multiple-choice questions and numerical answer type questions, requiring both quick thinking and accurate calculations.

PMP (Project Management Professional) Exam

The Project Management Professional (PMP) exam is administered by the Project Management Institute (PMI) and serves as a globally recognized credential for project management expertise. This exam validates a candidate’s ability to initiate, plan, execute, monitor, and close projects across various industries.

Why It’s Tough

  • Wide Range of Knowledge: The exam covers everything from risk management to stakeholder engagement, requiring a thorough grasp of the Project Management Body of Knowledge (PMBOK).
  • Experience Requirements: To even sit for the exam, you need significant project management experience, making it an exclusive challenge.
  • Multiple Formats: The exam includes both multiple-choice questions and scenario-based tasks, testing not just memory but also practical skills.
  • High Stress: With only four hours to answer 180 questions, the pressure is intense.

Unique Characteristics

  • Global Applicability: PMP certification is accepted and valued worldwide, across diverse industries.
  • PDU Requirements: Even after passing, maintaining the PMP credential requires ongoing professional development units (PDUs), ensuring professionals stay current.
  • Ethical Focus: The exam also tests awareness and understanding of professional and ethical responsibilities.
10 Toughest Exams in The World
10 Toughest Exams in The World

Notable Mentions

While the above exams certainly set the benchmark for difficulty and competition, there are a number of other tests around the world that deserve to be acknowledged for their toughness:

CPA (Certified Public Accountant) Exam – USA

This grueling exam tests the knowledge and skills of aspiring accountants and is notorious for its low pass rates.

LNAT (Law National Aptitude Test) – UK

This test is used for admissions to some law courses in the UK and assesses critical thinking and interpretative abilities.

All Souls Prize Fellowship Exam – Oxford University, UK

Known as one of the hardest exams at one of the world’s top universities, this fellowship exam requires candidates to write essays on topics that range from philosophy to politics.

PLAB (Professional and Linguistic Assessments Board) – UK

Required for medical practitioners from other countries to practice in the UK, the PLAB is a two-part assessment that is both extensive and exhaustive.

Suneung – South Korea

Commonly referred to as the South Korean SAT, this exam has such a high-stress level that it has societal implications, including regulated traffic and noise levels on the exam day.

STEP Papers – University of Cambridge, UK

These are extremely challenging tests for undergraduate admissions in Mathematics at the University of Cambridge.

Also Read: Toughest Exams in India: 5 Most Difficult Examinations In India

shashi shekhar

Completed my PGDM from IMS Ghaziabad, specialized in (Marketing and H.R) "I truly believe that continuous learning is key to success because of which I keep on adding to my skills and knowledge."

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