List questions from recreational-mathematics

Published on 14 Apr 2026 - 16:53

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How to find the error in a proof? (that $1=0$)

Published on 09 Apr 2026 - 21:48

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Is it possible to test $x > c$ and $y > c$ using only one condition?

Published on 11 Apr 2026 - 4:28

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A recreational math problem, integers in a grid

Published on 13 Apr 2026 - 0:09

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All positive integers satisfying $n2^n=5^m+7$

Published on 28 Apr 2026 - 16:57

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Running in the rain, good or bad idea?

Published on 16 Apr 2026 - 4:02

702

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"8 Dice arranged as a Cube" Face-Sum Equals 14 Problem

Published on 14 Apr 2026 - 20:45

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A formula with only one $0$ that evaluates to a given integer

Published on 12 Apr 2026 - 4:29

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Guaranteed Checkmate with Rooks in High-Dimensional Chess

Published on 15 Apr 2026 - 2:52

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Sum(Partition(Binary String)) = $2^k$

Published on 12 Apr 2026 - 0:17

98

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What are the chances of having certain cards on certain turns if you draw one card each turn?

Published on 15 Apr 2026 - 17:19

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Bat and ball calculations

Published on 12 Apr 2026 - 14:23

226

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Winning strategy

Published on 09 Apr 2026 - 20:43

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Flipping Cards Probability

Published on 13 Apr 2026 - 18:28

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A Math trick with the number 246,913,578

Published on 16 Apr 2026 - 20:34

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Number Game: 31 - Winning Strategy?

How to find the error in a proof? (that $1=0$)

Is it possible to test $x > c$ and $y > c$ using only one condition?

A recreational math problem, integers in a grid

All positive integers satisfying $n2^n=5^m+7$

Running in the rain, good or bad idea?

"8 Dice arranged as a Cube" Face-Sum Equals 14 Problem

A formula with only one $0$ that evaluates to a given integer

Guaranteed Checkmate with Rooks in High-Dimensional Chess

Sum(Partition(Binary String)) = $2^k$

What are the chances of having certain cards on certain turns if you draw one card each turn?

Bat and ball calculations

Winning strategy

Flipping Cards Probability

A Math trick with the number 246,913,578

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