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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 176 · 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. Tara says: “Aisha and I both tell the truth.” Aisha says: “Tara is a liar.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Ira says: “Priya and I are the same kind.” Priya says: “Ira and I both tell the truth.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Rohan says: “At least one of us two, Karan or I, is a liar.” Karan says: “Rohan and I both tell the truth.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Aarav says: “Diya is a liar.” Diya says: “Aarav and I are the same kind.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Diya says: “At least one of us two, Kabir or I, is a liar.” Manav says: “Kabir is a liar.” Kabir says: “Diya and I both tell the truth.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Riya says: “Omkar tells the truth.” Omkar says: “Riya and I are the same kind.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Diya says: “Isha and I are the same kind.” Isha says: “Diya tells the truth.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Omkar says: “Diya and I are different kinds.” Pooja says: “Diya and I both tell the truth.” Diya says: “Omkar and I are the same kind.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Kavya says: “Karan tells the truth.” Karan says: “Kavya and I are the same kind.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Neel says: “Priya is a liar.” Priya says: “Neel and I both tell the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Sneha says: “Omkar tells the truth.” Omkar says: “Sneha and I are different kinds.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Diya says: “Arjun is a liar.” Arjun says: “Aditya and I are different kinds.” Aditya says: “Arjun is a liar.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Neel says: “Ananya and I are different kinds.” Ananya says: “Neel and I are the same kind.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Riya says: “Neel and I are the same kind.” Neel says: “Riya and I both tell the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Zoya says: “Siddharth and I both tell the truth.” Aisha says: “Siddharth and I are different kinds.” Siddharth says: “Aisha is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Ira says: “Kabir and I both tell the truth.” Kabir says: “Ira 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. Aditya says: “Meera and I are the same kind.” Meera says: “Aditya tells the truth.” Yash says: “Aditya tells the truth.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Ananya says: “At least one of us two, Nisha or I, is a liar.” Nisha says: “Ananya and I are the same kind.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Arjun says: “Aarav tells the truth.” Aarav says: “Arjun and I are different kinds.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Arjun says: “Nisha tells the truth.” Nisha says: “Diya tells the truth.” Diya says: “Arjun and I are different kinds.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Siddharth says: “Isha and I are the same kind.” Isha says: “Siddharth tells the truth.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Saanvi says: “Dev is a liar.” Zoya says: “At least one of us two, Dev or I, is a liar.” Dev says: “Zoya and I both tell the truth.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Ananya says: “Kavya and I both tell the truth.” Tara says: “At least one of us two, Ananya or I, is a liar.” Kavya says: “Tara tells the truth.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Aarav says: “Arjun is a liar.” Arjun says: “Aarav and I both tell the truth.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Diya says: “Isha is a liar.” Isha says: “At least one of us two, Diya or I, is a liar.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Siddharth says: “Priya and I are the same kind.” Priya says: “Siddharth and I are different kinds.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Saanvi says: “Zoya and I are different kinds.” Zoya says: “Saanvi is a liar.” Aarav says: “Zoya is a liar.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Yash says: “Nisha and I are different kinds.” Nisha says: “Karan tells the truth.” Karan says: “Yash tells the truth.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Manav says: “Aarav tells the truth.” Aarav says: “Manav and I are the same kind.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Ishaan says: “Omkar tells the truth.” Omkar says: “Ishaan and I are different kinds.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Dev says: “Myra is a liar.” Myra says: “At least one of us two, Dev or I, is a liar.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Zoya says: “Nisha and I are different kinds.” Nisha says: “Zoya is a liar.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Aarav says: “Tara and I both tell the truth.” Tara says: “Aarav and I are the same kind.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  34. 34.Each person always tells the truth or always lies. Manav says: “Priya tells the truth.” Priya says: “Manav and I are the same kind.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Karan says: “Aarav is a liar.” Aarav says: “Karan and I are the same kind.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Riya says: “Tara and I are different kinds.” Tara says: “Riya tells the truth.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Nisha says: “At least one of us two, Priya or I, is a liar.” Priya says: “Nisha and I are the same kind.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Kabir says: “Priya and I are the same kind.” Arjun says: “Kabir and I are different kinds.” Priya says: “Arjun and I are the same kind.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Pooja says: “Tara and I are the same kind.” Tara says: “Pooja is a liar.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Siddharth says: “Dev and I are the same kind.” Dev says: “Siddharth and I are different kinds.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

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

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