### 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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Riddles and Answers © 2017

## The Odds Of A Boy Riddle

Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?

Hint:

## Hundred Dollar Bill Riddle

Hint:

Of course it is. A $100 bill is worth more than a $1 bill (newer one).

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## Soda Or Coffee Riddle

George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda.

Using logic, is Elizabeth drinking coffee or soda?

Using logic, is Elizabeth drinking coffee or soda?

Hint:

Elizabeth is drinking coffee. The letter E appears twice in her name, as it does in the names of the others that are drinking coffee.

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## The Mountain Of Two Paths

You walk up to a mountain that has two paths. One leads to the other side of the mountain, and the other will get you lost forever. Two twins know the path that leads to the other side. You can ask them only one question. Except! One lies and one tells the truth, and you don't know which is which. So, What do you ask?

Hint:

You ask each twin What would your brother say?. This works because.... Well let's say the correct path is on the left side. So say you asked the liar "What would your brother say?" Well, the liar would know his brother was honest and he would say the left side, but since the liar lies, he would say right. If you asked the honest twin the same question, he would say right, because he knows his brother will lie. Therefore, you would know that the correct path was the left!

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## Lightening A Barrel Riddle

Hint:

## Candles On A Cake Riddle

Hint:

## Throwing Rum Riddle

What is the easiest way to throw a bottle of Rum, have it stop, and completely reverse direction after traveling a short distance?

Hint:

## The Claustrophobic Train Ride

A train just leaves a station and enters a tunnel. Where is the best place for a claustrophobic person to sit?

Hint:

In the back. See, the train is still accelerating as it is leaving the station so the train will be moving faster when the back of the train enters the tunnel.

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## Walking Through Walls Riddle

Hint:

## Two Gates Riddle

You are standing in front of two gates (a left one and a right one) one leads to Heaven and the other leads to Hell. You don't know which gate leads where. Beside the gates, there are two angels. One of them always tells the truth and the other always lies, but you dont know which one is which.

You have one question to ask one of the angels, in order to find out which gate will lead you to Heaven. What would that question be?

You have one question to ask one of the angels, in order to find out which gate will lead you to Heaven. What would that question be?

Hint:

The question is: What would the other angel say, if I asked which gate leads to Heaven?. And do exactly the opposite of what the angel says.

If the left gate leads to Heaven:

The angel that tells the truth will say that it's the right gate since it knows that the other angel will lie.

The angel that lies will also say that it's the right gate since it knows that the other angel will tell the truth.

The same explanation applies if the right gate leads to Heaven.

YES NO

If the left gate leads to Heaven:

The angel that tells the truth will say that it's the right gate since it knows that the other angel will lie.

The angel that lies will also say that it's the right gate since it knows that the other angel will tell the truth.

The same explanation applies if the right gate leads to Heaven.

*Did you answer this riddle correctly?*YES NO

## Post Your Logic Riddles Below

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