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Truth Teller and Liar Puzzles Worksheet

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

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