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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 110 · 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. Kabir says: “Saanvi tells the truth.” Saanvi says: “Isha and I both tell the truth.” Isha says: “Saanvi and I are the same kind.” Is Saanvi a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Rohan says: “Myra and I both tell the truth.” Myra says: “At least one of us two, Rohan or I, is a liar.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Omkar says: “Tara is a liar.” Tara says: “At least one of us two, Omkar or I, is a liar.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Ira says: “Ishaan and I are the same kind.” Yash says: “Ira is a liar.” Ishaan says: “Ira and I are the same kind.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Ishaan says: “At least one of us two, Kabir or I, is a liar.” Kabir says: “Ishaan is a liar.” Ananya says: “Ishaan tells the truth.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Manav says: “Ishaan and I both tell the truth.” Ishaan says: “At least one of us two, Manav or I, is a liar.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Farhan says: “Omkar and I are the same kind.” Omkar says: “Farhan tells the truth.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Priya says: “Neel and I are different kinds.” Neel says: “Priya tells the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Kavya says: “Aarav tells the truth.” Aarav says: “Kavya and I are the same kind.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Nisha says: “Karan is a liar.” Karan says: “Nisha and I are different kinds.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Myra says: “At least one of us two, Dev or I, is a liar.” Dev says: “Myra is a liar.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Nisha says: “Pooja and I both tell the truth.” Pooja says: “At least one of us two, Nisha or I, is a liar.” Is Nisha a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Kabir says: “Omkar and I both tell the truth.” Omkar says: “Isha and I are the same kind.” Isha says: “Omkar and I are different kinds.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Neel says: “Aditya is a liar.” Aditya says: “Neel and I are different kinds.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Dev says: “Kabir and I are different kinds.” Kabir says: “Dev tells the truth.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Kabir says: “Kavya tells the truth.” Kavya says: “Kabir and I are the same kind.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Tara says: “Rohan and I are different kinds.” Arjun says: “Rohan tells the truth.” Rohan says: “Tara and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Ishaan says: “Priya and I are different kinds.” Vivaan says: “At least one of us two, Priya or I, is a liar.” Priya says: “Ishaan is a liar.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Manav says: “Riya is a liar.” Riya says: “Zoya is a liar.” Zoya says: “Riya and I both tell the truth.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Pooja says: “Meera is a liar.” Meera says: “Pooja and I are different kinds.” Is Meera a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Meera says: “Aisha and I are the same kind.” Aisha says: “Meera and I are the same kind.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Neel says: “Isha tells the truth.” Isha says: “Neel and I are the same kind.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Rohan says: “Aditya is a liar.” Aditya says: “Rohan and I both tell the truth.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Diya says: “Priya is a liar.” Priya says: “Diya and I both tell the truth.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Karan says: “Myra and I both tell the truth.” Myra says: “Karan is a liar.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Priya says: “Rohan and I are different kinds.” Rohan says: “Priya tells the truth.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Farhan says: “At least one of us two, Neel or I, is a liar.” Neel says: “Farhan and I both tell the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Manav says: “At least one of us two, Priya or I, is a liar.” Priya says: “Manav and I both tell the truth.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Neel says: “Vivaan and I both tell the truth.” Vivaan says: “Yash and I are the same kind.” Yash says: “Vivaan is a liar.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Aditya says: “Aarav and I both tell the truth.” Farhan says: “Aditya tells the truth.” Aarav says: “Farhan and I are the same kind.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Kavya says: “Yash and I are the same kind.” Yash says: “Kavya tells the truth.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Zoya says: “Ishaan tells the truth.” Ishaan says: “Zoya and I are different kinds.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Yash says: “Manav and I are the same kind.” Manav says: “Yash is a liar.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  34. 34.Each person always tells the truth or always lies. Nisha says: “Meera and I are different kinds.” Karan says: “Meera is a liar.” Meera says: “Nisha tells the truth.” Is Meera a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Riya says: “Tara and I are different kinds.” Tara says: “Riya and I are different kinds.” Kavya says: “Riya and I both tell the truth.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Myra says: “Ananya is a liar.” Ananya says: “At least one of us two, Myra or I, is a liar.” Saanvi says: “Myra is a liar.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Kavya says: “At least one of us two, Rahul or I, is a liar.” Rahul says: “Kavya and I both tell the truth.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Vivaan says: “Aisha and I are different kinds.” Aisha says: “Vivaan and I are different kinds.” Ira says: “At least one of us two, Aisha or I, is a liar.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Ira says: “Meera is a liar.” Meera says: “At least one of us two, Ira or I, is a liar.” Is Meera a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Zoya says: “Ira and I are different kinds.” Ira says: “Zoya tells the truth.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

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

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