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Truth Teller and Liar Puzzles Worksheet

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

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