# LOGIC RIDDLES

### Fun Facts (Hints)

Here are a few facts about logical thinking. They may be able to help you in solving a few of these riddles:
• Logic has a few definitions, but is most known as the study of reasoning.
• Logic is used everyday in areas like mathematics, computers, and philosophy.
• The word logic is derived from the Greek word "logos."
• The creation of the study of logic is often attributed to Aristotle.
• Aristotle's study of logic has had a tremendous impact on the history of the world.

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## Throwing A Ball Riddle

Hint:
What is the easiest way to throw a ball, and have it stop, and completely reverse direction after traveling a short distance?
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Solved: 44%

Hint:
They Both Took Of At The Same Time On Different Days
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Solved: 42%

## Opening Doors Riddle

Hint:
His car door
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Solved: 70%

## Switch Or Stick Riddle

Hint:
The answer may surprise you: switch. Due to something called the Monty Hall Paradox, you will statistically have a better chance of making the "correct" choice. The concept is as follows:

Door 1 Door 2 Door 3

All have an equal chance to be correct:

Door 1: 1/3 Door 2: 1/3 Door 3: 1/3

After choosing Door 1, the remaining two have a 2/3 chance of containing the right choice:

Door1: 1/3 Doors 2 3: 2/3

If Door 3 is removed, the probability does not shift to 50:50. Instead, it is:

Door 1: 1/3 Door 2: 2/3

Thus, you should switch.
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Solved: 63%

## Condemned To Death Riddle

Hint: When's the last time you ate?
The 3rd one because the lions should have died after not eating for 3 years.
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## Doorway To Heaven

Hint:
If I asked the other guardian which door leads to heaven, what would he tell me?
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Solved: 64%

## Prohibited Chess Riddle

Hint:
Chess.
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Solved: 61%

## Accepting The Bet Riddle

Hint:
Yes, you should accept the bet. Simply because the odds of picking two relatively prime numbers are 60%. It is a win-win situation for you if you keep playing.
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Solved: 64%

## Grapeland To Applecity

Hint:
Step one: First you want to make 3 trips of 1,000 grapes 333 kilometers. You will be left with 2,001 grapes and 667 kilometers to go.
Step two: Next you want to take 2 trips of 1,000 grapes 500 kilometers. You will be left with 1,000 grapes and 167 kilometers to go (you have to leave a grape behind).
Step three: Finally, you travel the last 167 kilometers with one load of 1,000 grapes and are left with 833 grapes in appleland.
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Solved: 38%

## Boxes Of Balls Riddle

Hint:
Just One!

Because we know all labels are wrong.
So the BW box must be either BB or WW. Selecting one ball from BW will let you know which.
And the other two boxes can then be worked out logically.
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Solved: 50%

## Post Your Logic Riddles Below

Can you come up with a cool, funny or clever Logic Riddles of your own? Post it below (without the answer) to see if you can stump our users.