Section A: Current Affairs & General Knowledge
1. What was the Nigerian Correctional Service previously called?
✅ Answer: Nigerian Prisons Service
2. When was it renamed the Correctional Service?
✅ Answer: 2019
📚 Explanation:
Through the Nigerian Correctional Service Act signed by President Buhari.
3. Who is the current Controller General of Corrections?
✅ Answer: Haliru Nababa (as of 2024-2025)
4. Under which ministry does NCoS operate?
✅ Answer: Ministry of Interior
5. What is the motto of NCoS?
✅ Answer: “Service and Humanity.”
6. Who is the current President of Nigeria?
✅ Answer: Bola Ahmed Tinubu
7. Who was the first President of Nigeria?
✅ Answer: Dr. Nnamdi Azikiwe
8. What is the capital of Nigeria?
✅ Answer: Abuja
9. When did Nigeria gain independence?
✅ Answer: 1st October 1960
10. Who is the current Minister of Interior?
✅ Answer: Hon. (Dr) Olubunmi Tunji-Ojo
11. What is the population of Nigeria approximately?
✅ Answer: Over 200 million
12. What currency is used in Nigeria?
✅ Answer: Naira
13. Which river is the longest in Nigeria?
✅ Answer: River Niger
14. What does NEMA stand for?
✅ Answer: National Emergency Management Agency
15. Where is the NCoS headquarters located?
✅ Answer: Abuja, Nigeria
16. What are the duties of NCoS?
✅ Answer: Safe custody, reformation, rehabilitation, and reintegration of offenders.
17. Who is the current Senate President?
✅ Answer: Senator Godswill Akpabio
18. What does EFCC stand for?
✅ Answer: Economic and Financial Crimes Commission
19. What does DSS stand for?
✅ Answer: Department of State Services
20. What is the emergency phone number in Nigeria?
✅ Answer: 112
Section B: English Language
21. The inmate _____ escaped was caught.
✅ Answer: (C) who
22. Opposite of Release?
✅ Answer: (B) Detain
23. Correct spelling:
✅ Answer: (A) Discipline
24. I am interested _____ joining NCoS.
✅ Answer: (A) in
25. Identify the verb: The prison officers work hard.
✅ Answer: work
26. Synonym of Reform?
✅ Answer: (A) Change
27. Antonym of Legal?
✅ Answer: (D) Illegal
28. Which is a noun?
✅ Answer: (C) Rehabilitation
29. Neither the inmates nor the officer _____ hurt.
✅ Answer: (A) was
30. Correct sentence:
✅ Answer: (C) The inmate has been released.
Section C: Mathematics
31. 7² + 2² = ?
✅ Answer: 49 + 4 = 53
32. Simplify: 15 ÷ (3 × 1)
✅ Answer: 15 ÷ 3 = 5
33. Solve for x: 4x + 4 = 20
✅ Answer: 4x = 16, x = 4
34. LCM of 8 and 12?
✅ Answer: 24
35. HCF of 18 and 24?
✅ Answer: 6
36. 25% of 800?
✅ Answer: (0.25 × 800) = 200
37. Probability of picking a blue ball from 3 red and 2 blue balls?
✅ Answer: 2/5
38. Simple interest on N6000 at 3% for 2 years?
✅ Answer: (6000 × 3 × 2)/100 = N360
39. ⅗ as a percentage?
✅ Answer: (3/5) × 100 = 60%
40. Simplify: (14 – 6) + (2 × 3)
✅ Answer: 8 + 6 = 14
Section D: Correctional Service Specific
41. What is the main purpose of correctional facilities?
✅ Answer: Rehabilitation and reformation of offenders
42. Who is an inmate?
✅ Answer: A person confined in a prison or correctional facility.
43. What is parole?
✅ Answer: Conditional release of a prisoner before completion of sentence under
supervision.
44. What is recidivism?
✅ Answer: Returning to crime after being released from prison.
45. Who is a warder?
✅ Answer: A correctional officer or prison guard.
46. Types of correctional facilities in Nigeria?
✅ Answer: Custodial centres and non-custodial units
47. Examples of non-custodial measures?
✅ Answer: Community service, parole, probation
48. What is probation?
✅ Answer: An alternative sentence allowing an offender to remain in the community under
supervision.
49. What is bail?
✅ Answer: Temporary release of an accused person awaiting trial.
50. What is solitary confinement?
✅ Answer: Keeping an inmate alone in a cell as punishment.
Section E: General Science
51. What gas do humans need for respiration?
✅ Answer: Oxygen
52. Normal body temperature in Celsius?
✅ Answer: 37°C
53. Chemical symbol of potassium?
✅ Answer: K
54. Largest bone in human body?
✅ Answer: Femur (thigh bone)
55. Which organ filters blood?
✅ Answer: Kidney
56. Blood is pumped by which organ?
✅ Answer: Heart
57. Number of chambers in human heart?
✅ Answer: 4
58. Boiling point of water?
✅ Answer: 100°C
59. Chemical symbol for gold?
✅ Answer: Au
60. Gas plants use for photosynthesis?
✅ Answer: Carbon dioxide
Section F: Logical Reasoning
61. If all officers are trained and some trained are promoted, can we conclude some officers
are promoted?
✅ Answer: No
62. If today is Friday, what day will it be in 12 days?
✅ Answer:
12 ÷ 7 = 1 week + 5 days → Friday + 5 = Wednesday
63. Next number: 6, 12, 24, 48, __
✅ Answer: 96
64. Choose the odd one out:
(A) Rehabilitation
(B) Reformation
(C) Imprisonment
(D) Oxygen
✅ Answer: (D) Oxygen
📚 Explanation:
Others relate to correctional services.
65. If 7x = 35, what is x?
✅ Answer: x = 35 ÷ 7 = 5
66. Rearrange: officers / trained / the / well / are.
✅ Answer: The officers are well trained.
67. If A is older than B and B is older than C, who is the youngest?
✅ Answer: C
68. Which number is missing: 15, __, 25, 30, 35
✅ Answer: 20
69. Next in sequence: 4, 8, 12, 16, __
✅ Answer: 20
70. Choose the odd one out:
(A) Court
(B) Prison
(C) Police
(D) Teacher
✅ Answer: (D) Teacher
Section G: More Current Affairs
71. Current IGP?
✅ Answer: Kayode Egbetokun
72. Current Chief of Army Staff?
✅ Answer: Lt. Gen. Taoreed Lagbaja
73. NAFDAC stands for?
✅ Answer: National Agency for Food and Drug Administration and Control
74. DG of NAFDAC?
✅ Answer: Prof. Mojisola Adeyeye
75. NDLEA stands for?
✅ Answer: National Drug Law Enforcement Agency
76. Chairman of NDLEA?
✅ Answer: Brig. Gen. Mohamed Buba Marwa (Rtd)
77. Number of states in Nigeria?
✅ Answer: 36 + FCT
78. Name three states in South West.
✅ Answer: Lagos, Ogun, Oyo
79. Capital of Enugu State?
✅ Answer: Enugu
80. Current governor of Kano State?
✅ Answer: Abba Kabir Yusuf
Section H: Numerical Reasoning
81. Inmate meal cost N200 per day. What is the cost for 30 days?
✅ Answer: 200 × 30 = N6000
82. A Vehicle travels at 70 km/hr. Time to cover 210 km?
✅ Answer: 210 ÷ 70 = 3 hours
83. Area of square with side 9 cm?
✅ Answer: 9 × 9 = 81 cm²
84. Perimeter of rectangle L=7 cm, W=3 cm?
✅ Answer: 2(7+3)=2(10)= 20 cm
85. If 3 soaps cost N450, what is the cost of 5 soaps?
✅ Answer:
1 soap = 150,
5 × 150 = N750
86. ⅙ of 120?
✅ Answer: 20
87. Multiply: 5 × 8
✅ Answer: 40
88. Divide: 90 ÷ 10
✅ Answer: 9
89. Square root of 144?
✅ Answer: 12
90. Cube of 5?
✅ Answer: 5 × 5 × 5 = 125
Section I: Additional General Knowledge
91. UN Secretary General?
✅ Answer: António Guterres
92. HQ of the African Union?
✅ Answer: Addis Ababa, Ethiopia
93. African country with smallest population?
✅ Answer: Seychelles
94. Largest continent?
✅ Answer: Asia
95. President of Senegal?
✅ Answer: Bassirou Diomaye Faye (2024-present)
96. Capital of Morocco?
✅ Answer: Rabat
97. Who discovered River Niger?
✅ Answer: Mungo Park
98. WHO stands for?
✅ Answer: World Health Organisation
99. Richest woman in Africa?
✅ Answer: Folorunsho Alakija
100. Capital of Bauchi State?
✅ Answer: Bauchi
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