Teechaa Worker

Background AI question generation and question diagrams. A second AI answers every new question on its own; when it agrees with the stored answer the question goes live, otherwise it waits here for you.

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Every 30 min, 50 questions per batch
Question diagrams
Up to 6 per batch, drawn by gpt-4o-mini, answer-checked by gpt-4o-mini, served from https://questions.teechaa.com/question_images

New questions

20520AI questions in bank

806awaiting review

SS3 / Commercenext batch (1 of 83 class/subject pairs in your bank)

2026-10-17 10:24:20 UTClast successful batch

AI questions for subjects a class doesn't take: from before generation was limited to the subjects in your question bank. They also make those subjects appear in the app's subject pickers for that class.

JSS1 Physics (30 draft) · JSS1 Chemistry (30 draft)

Going live

19475approved and live

689held for you to decide

0older drafts still to check (60 per run)

0deleted by you

Held questions: the checker didn't reach the stored answer, or found a problem. Green = stored answer, underlined = checker's pick. Approve if the stored answer is right, otherwise delete. Showing the latest 30 of 689.

#62659 · SS2 MathematicsSolve for y in the equations: 3x + 4y = 10 and x - 2y = 1.

A) 2
B) 3
C) 4
D) 5

Stored answer A · checker said B · Checker chose B, stored answer is A.

#62653 · SS2 MathematicsIf a tree is 10 m tall and the angle of elevation from a point 20 m away is 30°, what is the height of the tree?

A) 10 m
B) 5 m
C) 15 m
D) 20 m

Stored answer A · checker said X · The question is ambiguous as it does not specify the height of the tree relative to the angle of elevation.

#62651 · SS2 MathematicsWhat is the median of the set {1, 3, 3, 6, 7, 8, 9}?

A) 3
B) 6
C) 4
D) 5

Stored answer A · checker said D · Checker chose D, stored answer is A.

#62582 · SS2 GovernmentHow many amendments does the Nigerian Constitution have?

A) 5
B) 10
C) 15
D) None

Stored answer D · checker said X · The number of amendments to the Nigerian Constitution is not fixed and can change.

#62499 · SS2 Further MathematicsWhat is the second derivative of f(x) = x³ - 4x + 6?

A) 6x
B) 6x - 4
C) 2x
D) 0

Stored answer B · checker said A · Checker chose A, stored answer is B.

#62480 · SS2 English LanguageWhat can be inferred about the main character?

A) They are unhappy.
B) They are wealthy.
C) They are adventurous.
D) They are lazy.

Stored answer C · checker said X · The question is ambiguous without context about the main character.

#62336 · SS2 Civic EducationWhich right is guaranteed under the UDHR?

A) Right to free education
B) Right to own a car
C) Right to privacy
D) Right to free healthcare

Stored answer A · checker said C · Checker chose C, stored answer is A.

#62334 · SS2 Civic EducationWhich document outlines the fundamental human rights of individuals?

A) Nigerian Constitution
B) Universal Declaration of Human Rights
C) African Charter on Human Rights
D) Electoral Act

Stored answer B · checker said A · Checker chose A, stored answer is B.

#62222 · SS1 Technical DrawingWhat geometric shape is formed by the locus of points equidistant from a fixed line?

A) Circle
B) Parabola
C) Hyperbola
D) Straight line

Stored answer B · checker said A · Checker chose A, stored answer is B.

#62217 · SS1 Technical DrawingWhat is the scale of a drawing that represents 1 cm as 5 m in reality?

A) 1:1
B) 1:5
C) 1:50
D) 1:500

Stored answer D · checker said C · Checker chose C, stored answer is D.

#62216 · SS1 Technical DrawingWhat is the angle between the horizontal plane and the line of sight in perspective drawing?

A) 45°
B) 30°
C) 60°
D) 90°

Stored answer A · checker said X · The angle can vary depending on the perspective drawing technique used.

#62188 · SS1 PhysicsA 3 kg object moving at 4 m/s collides with a stationary 2 kg object. What is their combined velocity after an elastic collision?

A) 2 m/s
B) 1 m/s
C) 3 m/s
D) 0.5 m/s

Stored answer A · checker said X · The question does not provide enough information to determine the final velocities after the elastic collision.

#62177 · SS1 PhysicsIf the coefficient of static friction is 0.4, what is the maximum static friction force on a 50 kg object?

A) 200 N
B) 400 N
C) 50 N
D) 100 N

Stored answer A · checker said B · Checker chose B, stored answer is A.

#62160 · SS1 MathematicsIf y varies directly as x, and y = 10 when x = 2, find y when x = 5.

A) 25
B) 20
C) 15
D) 10

Stored answer B · checker said A · Checker chose A, stored answer is B.

#62154 · SS1 MathematicsWhat is the 5th term of the sequence 2, 4, 6, ...?

A) 10
B) 12
C) 14
D) 16

Stored answer A · checker said B · Checker chose B, stored answer is A.

#62153 · SS1 MathematicsWhat are the roots of the equation 2x² - 8x + 6 = 0?

A) 1, 3
B) 2, 4
C) 3, 1
D) 2, 3

Stored answer A · checker said X · The roots need to be calculated; the options do not match the correct roots.

#62144 · SS1 MathematicsWhat is the bearing from point A to B if A is at 045° and B is at 135°?

A) 90°
B) 180°
C) 135°
D) 225°

Stored answer C · checker said A · Checker chose A, stored answer is C.

#62084 · SS1 LiteratureWhich author is known for their use of symbolism in literature?

A) Chinua Achebe
B) Wole Soyinka
C) James Joyce
D) George Orwell

Stored answer C · checker said X · More than one option is correct as all listed authors use symbolism.

#62082 · SS1 LiteratureWhich of the following is an example of a couplet?

A) Roses are red, violets are blue.
B) To be or not to be, that is the question.
C) I wandered lonely as a cloud.
D) The road goes ever on and on.

Stored answer A · checker said X · None of the options provided is a couplet.

#62014 · SS1 GeographyIf a map scale is 1:50,000, how many centimeters on the map represent 1 kilometer in reality?

A) 1 cm
B) 2 cm
C) 5 cm
D) 10 cm

Stored answer D · checker said C · Checker chose C, stored answer is D.

#61964 · SS1 Further MathematicsWhat is the value of x in the equations 2x + 3y = 12 and x - y = 1?

A) 3
B) 4
C) 2
D) 1

Stored answer A · checker said B · Checker chose B, stored answer is A.

#61954 · SS1 Further MathematicsIf f(x) = 3x - 5, what is f(2)?

A) 1
B) 3
C) 6
D) 9

Stored answer D · checker said A · Checker chose A, stored answer is D.

#61953 · SS1 Further MathematicsWhat is the slope of the line passing through (1, 2) and (4, 6)?

A) 1
B) 2
C) 4
D) 0.5

Stored answer B · checker said A · Checker chose A, stored answer is B.

#61948 · SS1 Further MathematicsWhich expression simplifies to 3x + 7?

A) (3x + 2) + 5
B) 3(x + 2) - 1
C) 7 + 2x + x
D) (3x - 1) + 8

Stored answer A · checker said D · Checker chose D, stored answer is A.

#61921 · SS1 English LanguageSelect the correct form: Neither the teacher nor the students ____ ready for the exam.

A) is
B) are
C) was
D) have

Stored answer B · checker said A · Checker chose A, stored answer is B.

#61742 · SS1 Civic EducationHow many times has the Nigerian Constitution been amended?

A) 2 times
B) 4 times
C) 6 times
D) 8 times

Stored answer C · checker said X · The number of amendments to the Nigerian Constitution is subject to interpretation and may vary based on the context.

#61552 · JSS3 MathematicsIf two angles are supplementary and one angle is 110°, what is the other angle?

A) 70°
B) 90°
C) 80°
D) 100°

Stored answer A · checker said C · Checker chose C, stored answer is A.

#61551 · JSS3 MathematicsWhat is 2/3 ÷ 4/5?

A) 5/6
B) 3/8
C) 10/12
D) 8/15

Stored answer D · checker said A · Checker chose A, stored answer is D.

#61548 · JSS3 MathematicsWhat is the locus of points equidistant from point A and line BC?

A) A circle
B) A straight line
C) A square
D) A triangle

Stored answer B · checker said X · The locus of points equidistant from a point and a line is a straight line, not a circle.

#61540 · JSS3 MathematicsIn a triangle, if one angle is 50° and another is 70°, what is the third angle?

A) 60°
B) 70°
C) 80°
D) 90°

Stored answer A · checker said C · Checker chose C, stored answer is A.

Diagrams on new questions

**#59973 · SS2 Mathematics**A ladder leans against a wall making a 60° angle with the ground. If the ladder is 10 m long, what is the height it reaches?

**#59524 · SS1 Technical Drawing**Construct an angle of 120° using a protractor. What is the first step?

**#57328 · SS2 Mathematics**A tree casts a shadow of 10 m when the angle of elevation is 30°. How tall is the tree?

**#57312 · SS2 Mathematics**A ladder 10 m long leans against a wall, forming a 60° angle with the ground. How high does it reach?

**#55423 · JSS1 Mathematics**If a bar chart shows 4 bars with heights 3, 5, 2, and 6, what is the average height?

**#54142 · SS1 Technical Drawing**Construct an angle of 135° using a compass and straightedge. What is the first step?

**#53086 · JSS2 Mathematics**If a point is 5 cm from point A, what shape does the locus form?

**#50846 · JSS3 Mathematics**What is the locus of points equidistant from two points A and B?

**#50464 · JSS2 Mathematics**What is the locus of points equidistant from point A and point B?

**#50463 · JSS2 Mathematics**In a line graph, if the points (1,2) and (2,4) are connected, what is the slope?

**#50462 · JSS2 Mathematics**If a bar graph shows 5 apples and 3 oranges, how many fruits are there in total?

**#49706 · SS3 Physics**What is the principle behind a transformer?

Diagrams for old questions

0diagrams added

0still to look at

57no diagram needed / can't be drawn

1failed (retried up to 3×)

Recent runs

Started	Trigger	Status	Class / subject	Qs	Details
2026-10-17 10:29:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 10:24:20 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 10:23:37 UTC	timer	success	SS3 / Civic Education	28	28 approved and live, 0 held for review. 11 duplicate(s) of existing questions skipped.
2026-10-17 10:17:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 10:12:37 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-17 09:57:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 09:53:37 UTC	timer	success	SS3 / Chemistry	18	18 approved and live, 0 held for review. 1 question(s) dropped because they still contained code-like symbols after clean-up. 11 duplicate(s) of existing questions skipped.
2026-10-17 09:52:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 09:46:37 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-17 09:23:37 UTC	timer	success	SS3 / Biology	26	26 approved and live, 0 held for review. 6 duplicate(s) of existing questions skipped.
2026-10-17 09:20:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 09:14:37 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-17 08:59:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 08:54:10 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 08:53:37 UTC	timer	success	SS3 / Agricultural Science	28	28 approved and live, 0 held for review. 8 duplicate(s) of existing questions skipped.
2026-10-17 08:47:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-17 08:42:37 UTC	backfill	skipped			No old questions left that need a diagram.