The Logic Bulb - Invidious

The Logic Bulb

Welcome to The Logic Bulb—a space for curious minds, students, and problem solvers who love the elegance of mathematics, algebra, and geometry.

Explore engaging visual geometry proofs, algebraic equation puzzles, geometric area and angle challenges, systems of equations, number theory riddles, and Olympiad-style math problems. Each video breaks down complex concepts into intuitive, visual, step-by-step solutions designed to sharpen your mathematical intuition and reasoning.

Whether you enjoy finding the unknown variable, uncovering hidden geometric relationships, proving elegant theorems, or discovering clever algebraic tricks, there is always a new problem waiting to challenge you.

Subscribe to The Logic Bulb, pause the video to solve each problem on your own, and share your method in the comments.

Observe. Calculate. Prove.

For business inquiries: thelogicbulb@gmail.com

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5:35

Two Overlapping Circles: Can You Find the Shared Area?

The Logic Bulb

Shared 1 day ago

59 views

6:33

Can You Measure Every Gallon Using Just Two Water Jugs?

The Logic Bulb

Shared 6 days ago

95 views

3:13

Sphere Inside a Cylinder: Can You Find the Volume Ratio?

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Shared 1 week ago

96 views

3:09

Can You Find the Volume of Water in This Tank? | Math Puzzle

The Logic Bulb

Shared 1 week ago

531 views

6:53

The π = 4 Paradox: Where Does the Math Go Wrong?

The Logic Bulb

Shared 1 week ago

266 views

6:40

The 1978 Number Puzzle: Can You Find the Next “Good Year”?

The Logic Bulb

Shared 1 week ago

104 views

6:06

Can Repeated Square Roots of Pi Really Equal 1?

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Shared 1 week ago

326 views

5:27

Why Does 1 + cot²θ = csc²θ? The Pythagorean Connection

The Logic Bulb

Shared 2 weeks ago

202 views

8:22

Why Isn’t tan(2θ) Just 2tanθ? | Visual Trigonometry

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Shared 2 weeks ago

298 views

5:13

Can You Find the Area of This Rectangle? | 3-Circle Geometry Puzzle

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Shared 2 weeks ago

95 views

4:47

Can You Find the Shortest Path on a Cube? Ant on a Cube Puzzle.

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Shared 3 weeks ago

227 views

5:05

How to Measure Exactly 5 Liters Using 10L, 7L & 3L Jugs?

The Logic Bulb

Shared 4 weeks ago

1.4K views

11:12

8 Easy Tricks for Squaring Any Numbers in Your Head | Mental Math

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Shared 4 weeks ago

58 views

6:49

Why Is tan 90° Undefined? (Not Infinity)

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Shared 1 month ago

520 views

4:09

What Fraction of The Decagon Is Shaded? | Geometry Puzzle

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Shared 1 month ago

171 views

7:04

Why Does 0! = 1? The Mystery Explained

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Shared 1 month ago

376 views

3:59

What Fraction Is Shaded? | Hexagon & Circle Puzzle

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Shared 1 month ago

246 views

3:16

What Fraction of the Square Is Shaded? | Geometry Puzzle

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Shared 1 month ago

62 views

5:08

How can you fill 19 circles so every straight line adds up to 30?

The Logic Bulb

Shared 1 month ago

271 views

6:31

Can You Make 100 Using Only 7 Plus and Minus Signs?

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Shared 1 month ago

125 views

3:59

Why Can Sine and Cosine NEVER Exceed 1? | Trigonometry

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Shared 1 month ago

164 views

4:10

Why Does the Sine Graph Look Like a Wave? | Visual Explanation

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Shared 1 month ago

259 views

9:24

Why Is tan θ = sin θ / cos θ? | The Origins of Trigonometry

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Shared 1 month ago

3.2K views

6:41

How Sharp Is Your Focus? | 10 Brain & Focus Challenges

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Shared 1 month ago

858 views

9:52

Try These 5 Tricky Math Problems. PEMDAS explained.

The Logic Bulb

Shared 1 month ago

930 views

5:25

Why Is Pi = 3.14159…? Where Does π Come From?

The Logic Bulb

Shared 1 month ago

1K views

4:36

Why Is the Interior-Angle Sum of a Polygon (n−2)×180°? Visual Proof

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Shared 1 month ago

219 views

2:42

Why Is the Area of a Trapezoid ½(b₁ + b₂)h? Visual Proof

The Logic Bulb

Shared 1 month ago

418 views

3:30

Find the Exact Center of a Circle Using Only a Drafting Triangle.

The Logic Bulb

Shared 1 month ago

116 views

3:21

Why Do Polygon Exterior Angles Always Add to 360°? Visual Proof

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Shared 1 month ago

283 views

2:42

Why Does sin²θ + cos²θ = 1? | Visual Proof

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Shared 1 month ago

1K views

5:22

Why Is a Circle’s Circumference 2πr? | Visual Explanation

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Shared 1 month ago

2.1K views

4:39

Why Is the Area of a Parallelogram Base × Height? Visual Proof

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Shared 1 month ago

231 views

5:27

Can You Find the Rectangle Height? | Geometry Puzzle

The Logic Bulb

Shared 1 month ago

2.3K views

7:56

Can You Solve This Alphametic Puzzle? Find the Value of J

The Logic Bulb

Shared 1 month ago

320 views

4:02

How To Divide Green Yard Into 5 Identical Parts Using 10 Matches

The Logic Bulb

Shared 1 month ago

202 views

5:26

How to Remember the Complete Trigonometry Table | The 0–1–2–3–4 Trick

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Shared 2 months ago

227 views

3:33

Can You Find the Liar? A Clever Number Logic Puzzle

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Shared 2 months ago

23 views

2:41

Can You Find the Perimeter With Only Two Measurements?

The Logic Bulb

Shared 2 months ago

92 views

5:55

Why 360 Degrees? The Ancient Mathematics Behind Every Circle

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Shared 2 months ago

387 views

4:27

Why Is the Surface Area of a Sphere 4πr²? Visual Proof

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Shared 2 months ago

1.5K views

4:49

Is 0.999… Really Equal to 1? The Proof Explained

The Logic Bulb

Shared 2 months ago

77 views

3:41

Why Is the Curved Surface Area of a Cone πrL ?

The Logic Bulb

Shared 2 months ago

645 views

2:59

The Six-Coin Grid Puzzle | A Clever Logic Challenge

The Logic Bulb

Shared 2 months ago

215 views

3:45

How Many Triangles Are in This Figure? Systematic Solution

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Shared 2 months ago

222 views

5:33

The One Second Shortcut for Infinite Continued Fractions

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Shared 2 months ago

81 views

4:31

How to Solve √2√2√2…? | Infinite Nested Radical

The Logic Bulb

Shared 2 months ago

35 views

5:17

What is the value of the infinite nested radical with repeated ones?

The Logic Bulb

Shared 2 months ago

160 views

5:45

Why Does a Cone Have ⅓ the Volume of a Cylinder? Visual Geometry | The Logic Bulb

The Logic Bulb

Shared 2 months ago

2.1K views

4:49

Why Does the Pythagorean Theorem Work? A Visual Proof | The Logic Bulb

The Logic Bulb

Shared 2 months ago

131 views

3:54

Why Is the Area of a Triangle ½ × Base × Height? Visual Geometry | The Logic Bulb

The Logic Bulb

Shared 2 months ago

267 views

3:50

Why Do the Exterior Angles of a Triangle Add to 360°? Visual Geometry

The Logic Bulb

Shared 2 months ago

49 views

4:13

Why Do the Interior Angles of a Triangle Add to 180°? Visual Geometry

The Logic Bulb

Shared 2 months ago

152 views

4:15

Why Is the Area of a Circle πr² ? A Visual Explanation | The Geometry Behind the Area of a Circle.

The Logic Bulb

Shared 2 months ago

56 views

5:57

Can You Complete This Classic Magic Square? | Number Brain Teaser | Math Puzzle

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Shared 2 months ago

366 views

5:43

Can You Turn This Stepped Cross Into a Perfect Square? | Geometry Puzzle | Logic Brain Teaser

The Logic Bulb

Shared 2 months ago

54 views