### 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 © 2021

## 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.

YES NO

*Did you answer this riddle correctly?*YES NO

## 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

## Two Doors Riddle

You are imprisoned in a chamber with two doors as the only exit. One door leads to death by cancer, filled with complications and malpractice; the other door leads to riches of jewelry, money and fine clothing for the rest of your life. There are two guards standing before you: one guard always lies; the other always tells the truth. Of course, you dont know their identities. You can ask only one question to save your life. What should you ask?

Hint:

This is a logic question and can be answered if one realizes that the TRUTH of a LIE is a LIE, and the LIE of a TRUTH is a LIE. You need one guard to give you the other guards answer. Knowing this one could ask a question like, If I were to ask the other guard which door leads to freedom, what would he say?

If you ask the guard who always tells the truth, he would tell you the other guard would point you to the door of death. If you ask the guard who always lies, he would tell you the opposite door of the truth-telling guard and point you to the door of death. In either case, both guards will point to the door of death so you should choose the other one.

YES NO

If you ask the guard who always tells the truth, he would tell you the other guard would point you to the door of death. If you ask the guard who always lies, he would tell you the opposite door of the truth-telling guard and point you to the door of death. In either case, both guards will point to the door of death so you should choose the other one.

*Did you answer this riddle correctly?*YES NO

## Twinkle And Rinki Cross A River

Twinkle and Rinki wish to cross a river.

The only way to get to the other side of the river is by boat, but that boat can only take one of them at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both girls manage to cross using the boat.

How?

The only way to get to the other side of the river is by boat, but that boat can only take one of them at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both girls manage to cross using the boat.

How?

Hint:

## How Did He Know?

A man was driving a black car. His lights were off. The moon shown no light. A cat was in the middle of the road. How did he know to stop?

Hint:

## How Many Children?

Mr. Smith has 4 daughters. Each of his daughters has a brother.

How many children does Mr. Smith have?

How many children does Mr. Smith have?

Hint:

He has 5 children, all of the daughters have the same 1 brother.

YES NO

*Did you answer this riddle correctly?*YES NO

## Always Coming But Never Arrives

Hint: A mythical land where 99% of all human productivity, motivation and achievement is stored.

## The Start Of Nothing Logic Riddle

Hint: It's in plain sight

## 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.