# 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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## The Claustrophobic Train Ride

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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Solved: 47%

## Walking Through Walls Riddle

Hint:
A door!
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Solved: 65%

## Two Gates Riddle

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.
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Solved: 70%

## Two Doors Riddle

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.
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Solved: 51%

## Twinkle And Rinki Cross A River

Hint:
Twinkle and Rinki start on opposite sides of the river
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Solved: 56%

## How Did He Know?

Hint:
It was a bright and sunny day.
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Solved: 67%

## How Many Children?

Hint:
He has 5 children, all of the daughters have the same 1 brother.
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Solved: 76%

## Always Coming But Never Arrives

Hint: A mythical land where 99% of all human productivity, motivation and achievement is stored.
Tomorrow.
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## The Start Of Nothing Logic Riddle

Hint: It's in plain sight
The letter "N"
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## Post Your Logic Riddles Puns 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.

1. Why did the logician break up with his girlfriend? Because they had too many fallacies in their relationship.

2. How do you catch a squirrel using formal logic? Set up a syllogism with a nut as the conclusion.

3. Why did the philosopher refuse to go to the grocery store? Because he didn't believe in a posteriori knowledge.

4. Why did the mathematician go on a diet? To solve the weight problem.

5. Why did the chicken cross the road using propositional logic? To get to the other side of the truth table.

6. What do you call a logician who takes a long time to reach a conclusion? A syllogism.

7. How many logicians does it take to change a light bulb? None, they prefer to sit in the dark and contemplate the nature of light.

8. Why couldn't the logician sleep? He kept trying to form an adequate negation of "I am sleepy".

9. Why did the logician wear a two-colored hat? To ensure that the Law of Excluded Middle didn't apply.

10. What do you call a fallacious argument from a cow? A mooot point.

11. Why did the logician refuse to play cards with his friends? Because he doesn't believe in chance.

12. What do you call a logical argument from a whale? A cetacean of reason.

13. Why did the chicken refuse to enter the barn? Because the premise of the door's existence was never established.

14. How many philosophers does it take to change a light bulb? None, they would rather question the existence of light.

15. Why did the logical argument cross the road? To prove it was valid.

16. What do you call perfect deductive reasoning? A genius's argument.

17. Why was the logician's car a convertible? So they could put the top down for implication.

18. How many logicians does it take to screw in a light bulb? They would argue about the definition of "screw".

19. Why did the mathematician take a job as a lion tamer? To solve the problem of fear.

20. What do you call a logical argument from a computer? An algorithm of reasoning.

21. Why did the chicken cross the Mobius strip? To get to the same side.

22. How many philosophers does it take to agree on anything? The world may never know.

23. Why did the logician refuse to go to the beach? There were too many ways to take "wave" out of context.

24. What's the difference between an illogical chicken and a logical chicken? The latter crosses the road with a premise and a conclusion.

25. Why did the philosopher quit smoking? Because he realized that causation does not equal correlation.

26. What do you call a logical argument from a bird? A fowl syllogism.

27. Why did the logician refuse to watch movies? They already knew how it was going to end.

28. Why did the mathematician start a garden? To find a square root.

29. What do you call an argument that can talk but not walk? An invalid conclusion.

30. Why did the logician refuse to enter the world of online dating? Because it contradicts the Law of Identity.

31. What do you call a logical argument from a bee? A logical buzz.

32. How does a logician propose to their significant other? With a valid argument and a promise to never commit a fallacy.

33. Why did the philosopher join a gym? To prove that mind and body are not separate entities.

34. What do you call a logical argument from a snake? A reasoned hiss.

35. Why did the chicken refuse to participate in the Monty Hall problem? They had already established their pick as a matter of existential identity.

36. How do you get a logician to take a break? Present them with an unsolvable paradox.

37. Why did the logician refuse to eat the apple? They were suspicious of the causality behind it.

38. What do you call a logical argument from a hippo? A logical exercise.

39. Why did the philosopher refuse to attend the party? They didn't want to commit to the fallacy of generalization.

40. What do you call a logical argument from a donkey? A logical hee-haw.

41. Why did the logician refuse to go on vacation? The premise and conclusion of relaxation were never clearly defined.

42. What do you call a logical argument from a cricket? A logical chirp.

43. Why did the mathematician invest in the stock market? To solve the problem of exponential growth.

44. How can you tell if a logical argument is lost? It starts to formulate a premise and conclusion in circles.

45. Why did the logician refuse to go to the amusement park? They were integral to an ongoing proof.

46. What do you call a logical argument from a fish? A logical swim.

47. Why did the philosopher refuse to eat meat? They were argumentatively against the premise of animal exploitation.

48. What do you call a logical argument from a squirrel? A logical nut.

49. Why did the logician refuse to get a pet? Too many variables in the equation.

50. What do you call a logical argument from an alligator? A logical snap.