Puzzles & Quizzes

# Our Favorite Logic Puzzles

There are many variations on the logic puzzle, a device that some say was first introduced by Charles Lutwidge Dodson (better known by his nom de plume Lewis Carroll). In The Game of Logic, he introduced a series of syllogisms, or logical arguments that require deductive reasoning to arrive at a conclusion based on two or more propositions. From this seminal book, produced in 1886, a slew of variations have proliferated, such as the logic grid puzzle, Sudoku, and crosswords. These mind-benders are not only a fun challenge, they may be good for the brain. Some studies show that puzzles can help slow the cognitive decay caused by aging.

– singingbanana

### Key Facts In This Video

1. Here is the connect-the-towns math problem: 00:01

– singingbanana

### Key Facts In This Video

1. Here's the connect-the-towns math problem: 00:01

2. Working out the solution to problems like the connect-the-towns math problem is called calculus of variations. 01:36

3. Here is the solution to the connect-the-towns math problem: 02:25

– singingbanana

### Key Facts In This Video

1. The traditional setup of the Monty Hall Problem places a goat behind two doors and a sports car behind one. 00:26

2. It's easier to understand the solution to the Monty Hall Problem if you envision 100 doors instead of 3. 01:53

3. The Monty Hall Problem is not genuinely random, which is why its solution is counterintuitive. 03:53

– Physics Girl

### Key Facts In This Video

1. Archimedes' Principle states that the buoyant force on an object underwater is equal to the weight of the volume of water that the object displaces. 01:06

2. Using an "extreme case" to approach a problem allows people to visualize the problem's elements and solve it more easily. 01:59

3. Here are two more problems that lend themselves well to "extreme case" solving: 03:25

– Math Meeting

### Key Facts In This Video

1. Here is the heaven and hell guardian problem: 00:05

2. Here is the answer to the heaven and hell guardian problem: 01:06

– Math Meeting

### 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

Curiosity Staff  