10 Fun Math Puzzles with Solutions | Brain Teasers & Riddles

10 Fun Math Puzzles with Solutions | Brain Teasers & Riddles

Math Puzzle: 🤔🔢

🔢 Can You Solve This?

If:
👉 3 + 3 = 12
👉 4 + 4 = 20
👉 5 + 5 = 30

Then, what is 6 + 6 = ❓

Comment your answer below! ⬇️

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Solution: ✅

Look at the pattern carefully:

A + A = A × A

📌 3 + 3 = 3 × 4 = 12
📌 4 + 4 = 4 × 5 = 20
📌 5 + 5 = 5 × 6 = 30

So,
📌 6 + 6 = 6 × 7 = 42

Correct Answer: 42 🎉

Did you get it right? Comment below! ⬇️

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1️⃣ Puzzle:

If:
👉 2 + 2 = 8
👉 3 + 3 = 18
👉 4 + 4 = 32

Then, what is 5 + 5 = ❓

Solution:
A + A = A × A
📌 5 + 5 = 5 × 5 = 25 ✅

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2️⃣ Puzzle:

A father is 40 years old, and his son is 10 years old. How many years later will the father be twice as old as his son?

Solution:
Let X be the number of years.
📌 (40 + X) = 2 × (10 + X)
📌 40 + X = 20 + 2X
📌 40 – 20 = 2X – X
📌 X = 20 ✅

After 20 years, the father will be 60, and the son will be 30.

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3️⃣ Puzzle:

What comes next in this pattern?
2, 6, 12, 20, 30, ?

Solution:
Pattern: n² + n
📌 1² + 1 = 2
📌 2² + 2 = 6
📌 3² + 3 = 12
📌 4² + 4 = 20
📌 5² + 5 = 30
📌 6² + 6 = 42 ✅

The missing number is 42.

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4️⃣ Puzzle:

A man buys a bat and a ball for ₹110. The bat costs ₹100 more than the ball. How much does the ball cost?

Solution:
Let X be the cost of the ball.
📌 Bat = X + 100
📌 Total = X + (X + 100) = 110
📌 2X + 100 = 110
📌 2X = 10
📌 X = 5 ✅

The ball costs ₹5.

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5️⃣ Puzzle:

Fill in the blank:
9 + 2 = 711
8 + 5 = 313
7 + 6 = 413
5 + 4 = ?

Solution:
The pattern follows: A + B = (A – B)(A × B)(A + B)
📌 5 + 4 = (5 – 4)(5 × 4)(5 + 4) = 1209 ✅

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6️⃣ Puzzle:

What 3 consecutive numbers add up to 96?

Solution:
Let the three numbers be X, X+1, X+2
📌 X + (X+1) + (X+2) = 96
📌 3X + 3 = 96
📌 3X = 93
📌 X = 31 ✅

So, the numbers are 31, 32, and 33.

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7️⃣ Puzzle:

I am a 3-digit number. My tens digit is 5 more than my ones digit. My hundreds digit is 8 less than my tens digit. What number am I?

Solution:
Let the number be XYZ
📌 Y = Z + 5
📌 X = Y – 8
📌 If Z = 1, then Y = 6 and X = 6 – 8 = -2 ❌ (Not possible)
📌 If Z = 2, then Y = 7 and X = 7 – 8 = -1 ❌
📌 If Z = 3, then Y = 8 and X = 0 ✅

The number is 083 or just 83.

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8️⃣ Puzzle:

You have 10 apples. You take away 3. How many do you have?

Solution:
📌 You took 3 apples, so you HAVE 3 apples. ✅

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9️⃣ Puzzle:

Using only addition, how can you make 8 + 8 = 4 true?

Solution:
📌 8 AM + 8 Hours = 4 PM ✅

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🔟 Puzzle:

A clock shows 3:15. What is the angle between the hour and minute hands?

Solution:
📌 Formula for angle:∣(30×H)−(5.5×M)∣\left| (30 × H) – (5.5 × M) \right|∣(30×H)−(5.5×M)∣

📌 H = 3, M = 15
📌 Angle = | (30 × 3) – (5.5 × 15) |
📌 = |90 – 82.5| = 7.5° ✅

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🎉 Hope you enjoy these puzzles! Comment your answers and challenge your friends!

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