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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 112 · 40 questions
TalentJR

How to think it through (Suppose and check): Suppose the first speaker is a truth-teller: their words are true. Work out what that says about the others. Check every statement. A truth-teller’s words must be true; a liar’s words must be false. If you hit a clash, switch the supposition. The possibility with no clash is the answer.

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  1. 1.Each person always tells the truth or always lies. Ananya says: “Pooja and I are different kinds.” Pooja says: “Ananya is a liar.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Rahul says: “Farhan and I both tell the truth.” Farhan says: “At least one of us two, Rahul or I, is a liar.” Is Farhan a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Dev says: “Siddharth and I are the same kind.” Siddharth says: “Dev and I both tell the truth.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Kabir says: “Ishaan is a liar.” Ishaan says: “Kabir and I are different kinds.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Priya says: “Siddharth and I are different kinds.” Siddharth says: “Priya is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Zoya says: “Kabir and I are different kinds.” Kabir says: “Zoya tells the truth.” Rohan says: “Zoya and I both tell the truth.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Kavya says: “Saanvi is a liar.” Saanvi says: “Kavya and I are the same kind.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Arjun says: “At least one of us two, Nisha or I, is a liar.” Nisha says: “Arjun is a liar.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Myra says: “Farhan and I are different kinds.” Yash says: “Myra and I both tell the truth.” Farhan says: “Yash is a liar.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Tara says: “Aditya is a liar.” Aditya says: “Tara and I are the same kind.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Zoya says: “At least one of us two, Dev or I, is a liar.” Dev says: “Zoya and I both tell the truth.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Kavya says: “Rohan is a liar.” Rohan says: “At least one of us two, Kavya or I, is a liar.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Rahul says: “At least one of us two, Kabir or I, is a liar.” Kabir says: “Rahul and I both tell the truth.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Dev says: “Ishaan is a liar.” Ishaan says: “Dev and I both tell the truth.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Manav says: “At least one of us two, Riya or I, is a liar.” Riya says: “Manav and I are the same kind.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Meera says: “Aditya is a liar.” Aditya says: “Meera and I are different kinds.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Ishaan says: “Diya and I are the same kind.” Diya says: “Ishaan and I both tell the truth.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Siddharth says: “Ishaan is a liar.” Yash says: “Siddharth and I are the same kind.” Ishaan says: “Yash is a liar.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Karan says: “Rahul is a liar.” Rahul says: “At least one of us two, Karan or I, is a liar.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Pooja says: “Myra and I both tell the truth.” Vivaan says: “Myra and I are different kinds.” Myra says: “Vivaan and I are the same kind.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Kabir says: “Zoya and I both tell the truth.” Zoya says: “At least one of us two, Kabir or I, is a liar.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Priya says: “Riya and I are different kinds.” Riya says: “Priya is a liar.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Vivaan says: “Kavya and I are different kinds.” Kavya says: “Vivaan and I are the same kind.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Diya says: “Ishaan and I are the same kind.” Nisha says: “Ishaan is a liar.” Ishaan says: “At least one of us two, Diya or I, is a liar.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Arjun says: “Zoya and I are the same kind.” Zoya says: “Arjun and I are the same kind.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Ira says: “Siddharth tells the truth.” Arjun says: “Siddharth and I are different kinds.” Siddharth says: “Arjun and I are different kinds.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Ishaan says: “Siddharth and I are the same kind.” Ananya says: “Ishaan is a liar.” Siddharth says: “Ishaan tells the truth.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Myra says: “Rohan and I are the same kind.” Rohan says: “Myra and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Kavya says: “Aarav and I are the same kind.” Aarav says: “Kavya and I are different kinds.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Nisha says: “Isha tells the truth.” Isha says: “Nisha and I are the same kind.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Ishaan says: “Priya is a liar.” Priya says: “Ishaan and I are the same kind.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Rahul says: “At least one of us two, Kabir or I, is a liar.” Kabir says: “Nisha is a liar.” Nisha says: “Rahul tells the truth.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Nisha says: “Yash is a liar.” Myra says: “Nisha is a liar.” Yash says: “Nisha and I both tell the truth.” Is Nisha a truth-teller or a liar? (a) truth-teller (b) liar
  34. 34.Each person always tells the truth or always lies. Diya says: “At least one of us two, Zoya or I, is a liar.” Siddharth says: “At least one of us two, Zoya or I, is a liar.” Zoya says: “Siddharth is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Aisha says: “Priya is a liar.” Yash says: “Priya is a liar.” Priya says: “Yash and I are the same kind.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Omkar says: “Aarav and I both tell the truth.” Aditya says: “Omkar and I are the same kind.” Aarav says: “At least one of us two, Aditya or I, is a liar.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Rohan says: “Zoya is a liar.” Zoya says: “Rohan and I both tell the truth.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Manav says: “At least one of us two, Aarav or I, is a liar.” Aarav says: “Manav is a liar.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Omkar says: “Farhan is a liar.” Farhan says: “Omkar and I are the same kind.” Is Farhan a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Yash says: “Dev is a liar.” Dev says: “Yash and I are the same kind.” Kabir says: “Dev tells the truth.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

  1. liar
  2. truth-teller
  3. truth-teller
  4. truth-teller
  5. liar
  6. liar
  7. truth-teller
  8. truth-teller
  9. truth-teller
  10. truth-teller
  11. truth-teller
  12. liar
  13. truth-teller
  14. liar
  15. liar
  16. truth-teller
  17. truth-teller
  18. truth-teller
  19. truth-teller
  20. liar
  21. liar
  22. liar
  23. liar
  24. truth-teller
  25. truth-teller
  26. liar
  27. liar
  28. truth-teller
  29. truth-teller
  30. truth-teller
  31. liar
  32. liar
  33. truth-teller
  34. truth-teller
  35. truth-teller
  36. truth-teller
  37. liar
  38. liar
  39. liar
  40. truth-teller

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