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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 94 · 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. Pooja says: “Omkar and I are different kinds.” Omkar says: “Pooja is a liar.” Arjun says: “Pooja is a liar.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Omkar says: “Aarav and I are the same kind.” Aarav says: “Omkar is a liar.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Isha says: “Dev and I both tell the truth.” Dev says: “Isha is a liar.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Neel says: “Zoya and I are the same kind.” Zoya says: “Neel is a liar.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Kabir says: “Vivaan and I are different kinds.” Yash says: “Kabir tells the truth.” Vivaan says: “Yash and I are different kinds.” 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: “Saanvi tells the truth.” Saanvi says: “Manav and I are the same kind.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Karan says: “Tara and I are different kinds.” Siddharth says: “Karan is a liar.” Tara says: “Karan is a liar.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Kabir says: “Arjun and I both tell the truth.” Arjun says: “Kabir is a liar.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Siddharth says: “Isha and I are the same kind.” Isha says: “At least one of us two, Siddharth or I, is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Yash says: “Aisha and I are the same kind.” Aisha says: “Yash and I are the same kind.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Pooja says: “At least one of us two, Karan or I, is a liar.” Karan says: “Dev and I are different kinds.” Dev says: “Karan and I are different kinds.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Arjun says: “At least one of us two, Kabir or I, is a liar.” Kabir says: “Arjun and I both tell the truth.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Karan says: “At least one of us two, Sneha or I, is a liar.” Sneha says: “Karan and I both tell the truth.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Karan says: “Ananya and I are the same kind.” Ananya says: “At least one of us two, Karan or I, is a liar.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Vivaan says: “Manav and I are the same kind.” Manav says: “At least one of us two, Vivaan or I, is a liar.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Omkar says: “Neel and I are the same kind.” Neel says: “Zoya and I are the same kind.” Zoya says: “Omkar and I both tell the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Tara says: “Ananya and I are the same kind.” Ananya says: “At least one of us two, Tara or I, is a liar.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Ananya says: “Omkar and I are different kinds.” Manav says: “At least one of us two, Omkar or I, is a liar.” Omkar says: “Ananya tells the truth.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Vivaan says: “Neel is a liar.” Neel says: “At least one of us two, Vivaan or I, is a liar.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Diya says: “Priya is a liar.” Karan says: “Diya tells the truth.” Priya says: “Karan and I both tell the truth.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Aditya says: “Kabir and I are the same kind.” Kabir says: “Manav is a liar.” Manav says: “Aditya and I are the same kind.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Arjun says: “Kabir and I both tell the truth.” Omkar says: “Arjun tells the truth.” Kabir says: “Arjun is a liar.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Rahul says: “Karan and I are the same kind.” Karan says: “Rahul is a liar.” Kavya says: “Rahul is a liar.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Manav says: “Farhan is a liar.” Farhan says: “Tara tells the truth.” Tara says: “Farhan and I are different kinds.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Meera says: “Zoya tells the truth.” Kabir says: “Zoya and I are different kinds.” Zoya says: “Kabir tells the truth.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Ishaan says: “Kabir is a liar.” Kabir says: “Ishaan and I are different kinds.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Manav says: “Aarav is a liar.” Aarav says: “Siddharth is a liar.” Siddharth says: “Aarav and I both tell the truth.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Tara says: “Meera is a liar.” Meera says: “At least one of us two, Tara or I, is a liar.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Nisha says: “Kabir is a liar.” Kabir 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
  30. 30.Each person always tells the truth or always lies. Saanvi says: “Myra tells the truth.” Ananya says: “At least one of us two, Saanvi or I, is a liar.” Myra says: “Saanvi and I both tell the truth.” Is Saanvi a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Diya says: “Ira and I are different kinds.” Ira says: “Aisha is a liar.” Aisha says: “Diya and I are different kinds.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Vivaan says: “Aditya and I are the same kind.” Aditya says: “Vivaan tells the truth.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Neel says: “Yash is a liar.” Myra says: “Neel tells the truth.” Yash says: “Neel and I both tell the truth.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  34. 34.Each person always tells the truth or always lies. Tara says: “Meera and I both tell the truth.” Meera says: “Tara is a liar.” Priya says: “Meera is a liar.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Neel says: “Aisha is a liar.” Myra says: “At least one of us two, Aisha or I, is a liar.” Aisha says: “Myra and I are the same kind.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Arjun says: “Aisha and I are different kinds.” Isha says: “Aisha tells the truth.” Aisha says: “Arjun and I are different kinds.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Pooja says: “Manav and I are the same kind.” Manav says: “Farhan and I are the same kind.” Farhan says: “Pooja and I are the same kind.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Tara says: “Arjun and I are different kinds.” Arjun says: “Tara and I are different kinds.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Riya says: “Karan is a liar.” Karan says: “At least one of us two, Riya or I, is a liar.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Zoya says: “Siddharth and I are different kinds.” Siddharth says: “Zoya and I are the same kind.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

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

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