The Nigerian Intelligence Agency (NIA) is one of the most secretive security organizations in Nigeria — tasked with foreign intelligence and covert operations.

To join the NIA in 2025 or 2026, you must pass the official recruitment examination, which tests your reasoning, knowledge, and mental alertness.

This guide includes:

• Real NIA past questions & answers

• Format and subjects to expect

• How to prepare for the exam

• Tips to succeed in the test

Let’s dive in.

What Is the NIA Recruitment Exam?

The NIA recruitment exam is a written aptitude test conducted during the selection process. The exam is meant to assess the intelligence, general knowledge, and analytical abilities of applicants.

It usually includes:

Sample NIA Past Questions and Answers (2025/2026)

English Language Section

Q1. Choose the correct word: "The agents ______ all night to complete their mission."
A. works
B. worked
C. working
D. work
✅ Answer: B. worked

Q2. Find the opposite of the word: “Covert”
A. Silent
B. Private
C. Open
D. Hidden
✅ Answer: C. Open

Mathematics Section

Q3. What is 15% of 600?
A. 60
B. 90
C. 120
D. 150
✅ Answer: B. 90

Q4. Complete the number series: 2, 6, 12, 20, __?
A. 28
B. 30
C. 34
D. 36
✅ Answer: A. 30
(Explanation: +4, +6, +8, +10…)

Current Affairs Section

Q5. What does the Nigerian Intelligence Agency (NIA) primarily handle?
A. Internal policing
B. Foreign intelligence
C. Domestic surveillance
D. Judicial reforms
✅ Answer: B. Foreign intelligence

Q6. Who is Nigeria’s current National Security Adviser (as of 2025)?
✅ (Answer will be updated with the current NSA at the time of the exam.)

General Knowledge Section

Q7. Which African country shares the longest border with Nigeria?
A. Ghana
B. Cameroon
C. Chad
D. Benin Republic
✅ Answer: B. Cameroon

Q8. What is the capital of Canada?
A. Toronto
B. Montreal
C. Ottawa
D. Vancouver
✅ Answer: C. Ottawa

Logical Reasoning Section

Q9. If all spies are agents, and some agents are soldiers, then:
A. All spies are soldiers
B. Some soldiers are spies
C. Some spies are soldiers
D. Cannot be determined
✅ Answer: D. Cannot be determined

Q10. What comes next in the series: A, C, F, J, O, __?
A. Q
B. T
C. U
D. V
✅ Answer: B. T
(Explanation: +2, +3, +4, +5, +6…)

NIA Exam Format Summary Table

Note: Exam pattern may vary depending on recruitment year.

How to Prepare for NIA Exams in 2025/2026

Follow these steps to increase your chances of passing:

Study Tips:

• Get reliable past question PDFs

• Revise general knowledge and Nigerian current affairs

• Improve your grammar and logic reasoning

• Follow daily news headlines

• Practice simple maths daily

Free Resources to Focus On:

• Nigerian Constitution

• Names of key officials in government

• Global security bodies (UN, AU, ECOWAS)

• Maps and geography of Africa and the world

Frequently Asked Questions (FAQs)

1. Is the NIA exam difficult?

It is moderately challenging. With practice and preparation, you can pass.

2. Is there negative marking?

No official confirmation on this, so it’s best to answer all questions.

3. Can I write the exam online?

No. The exam is written physically at designated centers.

4. Can SSCE holders write the NIA exam?

Yes. But recruitment is very competitive, so higher qualifications (OND, HND, BSc) have an edge.

5. How can I get the full past question PDF?

You can request via email, Telegram, or comment section of trusted exam prep platforms.

Conclusion

The NIA recruitment exam for 2025/2026 is your gateway into Nigeria’s most elite intelligence agency. To pass, you need:

• Consistent practice

• Awareness of current affairs

• A strong grip on logic, English, and maths

By using these past questions and answers as your guide, you're already one step ahead of other applicants.