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Logic Puzzles II

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A collection of logic puzzles for fun and pleasure! Tease your brain with these logic puzzles, then click click for answer to show or hide the answer. (Note: You may need to enable JavaScript on your browser for the answers to show properly.)

Also visit our Math Trivia page for more arithmetic riddles, geometry riddles, statistics riddles, calculus riddles etc.

  • Cutting The Cake

    Jane and Jill were fighting over a small cake, and over which one of them should cut the cake. Their mother soon solved the problem, and made sure the pieces were even. No one could complain. What was the solution? click for answer

  • Adventures in Liar and Truthteller Town (Part 1)

    You’re so desperate to find a job, you’re even hunting in Liar and Truthteller Town. As the name implies, half the people always lie, and half the people always tell the truth, but outsiders cannot tell them apart by sight. You wait nervously in the reception room. An attractive, gossipy young lady next to you whispers she is sure that the previous applicant won’t get the job, because she heard him admit he was a Liar, and thus obviously unemployable. Then the interviewer calls you in. “I’m wearing a blue suit,” he says, and so he is, so he must be a Truthteller. “I need to test your logical reasoning skills for this position we have open. I will ask you one question, and this job depends on your answer. What can you tell me about the young lady you talked to outside?” click for answer
  • Family Time

    When Jim was strolling in the park one day, he ran into his father-in-law’s only daughter’s mother-in-law. What did he call her?

    click for answer

  • Class Canceled?

    The logic professor had placed a notice on his class door: “Class is canceled. We will meet again at 1:00 P.M. three days after two days before the day before tomorrow.” If today is Wednesday, when is the next class? click for answer
  • Strange Tastes (2)

    Dot likes pots and pans but not cooks. She likes straw but not hay; she likes sagas but not poems. Does she like a star or a planet? click for answer
  • The Night Watchman

    After a celebration feast in honor of his favorite football club’s victory, the night watchman went to work. In the morning, he told his boss that he dreamed someone had planted a bomb in the factory in a sabotage attempt, and he felt it was a warning. The boss had the factory inspected and they soon found the bomb hidden in the machinery. But now, instead of rewarding the night watchman, the boss fired him. Why?

    click for answer
  • The Cubes

    A rather eccentric businessman keeps two cubes on his desk. Every day he rearranges them so that they show the current day of the month. He even takes care to represent single digits as 07, for example, rather than 7. What numbers are on the cube faces? click for answer
  • Pennies

    Why are 1980 pennies worth more than 1979 pennies? click for answer
  • An Unusual Quiz

    My quiz for this day is most unusual, as is this paragraph. What is so unusual about it? If you look hard, you should find out what it is without too much difficulty. Try hard to spot it. How long did you think about it? click for answer
  • Joe’s Birthday

    Joe said to his friend at a New Year’s Eve party: “Yesterday I was twenty, but next year I will be twenty-two.” When is Joe’s birthday? click for answer

  • Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

    You can use the free Mathway widget below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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