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Truth Teller and Liar Puzzles Worksheet

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

Answer key

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

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