Puzzles

The Burning Rope Logic Puzzle

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Ready for a head-scratcher? The burning rope problem is a logic puzzle that doesn't require math, or pen and paper. It's a fun one to try out with friends and family—just make sure you can solve it first.

Here's The Logic Puzzle

You have two ropes and a lighter. Each rope has the following property: If you light one end of the rope, it will take one hour to burn to the other end. They don't necessarily burn at a uniform rate. How can you measure a period of 45 minutes? The video below gives a hint and explains the solution.

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Here's The Answer

To measure 45 minutes with these two ropes, first you light one rope and wait for it to burn completely. When it's finished, light the other rope at both ends. To have this explained more in-depth, watch the video below.

Editor's Picks: Our Favorite Logic Puzzle Videos

The Two Burning Ropes Brain Teaser

You might even second guess the solution, but it's logical.

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Key Facts In This Video

  1. This is the burning rope problem logic puzzle: 00:06

  2. Hint: Both ropes would take longer than 45 min. to burn, if you only lit one end. 01:22

  3. Here is the solution to the burning rope problem logic puzzle: 02:08

A Math Logic Puzzle

This brain teaser is a little more difficult, give it a try.

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Key Facts In This Video

  1. Here's the four card logic puzzle: 00:08

  2. Here's a logic puzzle (and answer to that puzzle) about four men who enter a bar: 01:01

  3. Here's the answer to the four card logic puzzle, explained: 01:41

Solve The 3 Lightbulb Puzzle

Theanswer to this one requires more practical thinking than you may approach it with.

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Key Facts In This Video

  1. Here is the three light bulbs logic puzzle: 01:21

  2. Here is the solution to the three light bulbs logic puzzle: 04:35

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