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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 131 · 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. Siddharth says: “Dev tells the truth.” Dev says: “Siddharth and I are the same kind.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Aisha says: “Manav is a liar.” Manav says: “Aisha and I are different kinds.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Aarav says: “Kavya and I are different kinds.” Kavya says: “Aarav tells the truth.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Aisha says: “Aarav is a liar.” Aditya says: “Aisha and I both tell the truth.” Aarav says: “Aditya and I are the same kind.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Diya says: “Ananya and I both tell the truth.” Ananya says: “Diya and I are the same kind.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Ira says: “Isha and I are the same kind.” Isha says: “Ira and I are the same kind.” Kavya says: “Isha is a liar.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Zoya says: “Aarav and I are the same kind.” Arjun says: “Zoya is a liar.” Aarav says: “At least one of us two, Arjun or I, is a liar.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Kabir says: “Zoya and I are different kinds.” Zoya says: “Kabir and I are different kinds.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Ira says: “Isha tells the truth.” Isha says: “Ira and I are the same kind.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Pooja says: “At least one of us two, Siddharth or I, is a liar.” Siddharth says: “Pooja and I are the same kind.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Rohan says: “Arjun and I are the same kind.” Arjun says: “Zoya and I both tell the truth.” Zoya says: “Rohan tells the truth.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Zoya says: “Omkar and I both tell the truth.” Omkar says: “At least one of us two, Zoya or I, is a liar.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Pooja says: “Tara is a liar.” Tara says: “Pooja and I are the same kind.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Myra says: “Diya is a liar.” Diya says: “At least one of us two, Myra or I, is a liar.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Isha says: “Meera is a liar.” Meera says: “Saanvi and I are the same kind.” Saanvi says: “Meera tells the truth.” Is Saanvi a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Neel says: “At least one of us two, Myra or I, is a liar.” Myra says: “Neel and I are the same kind.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Myra says: “Farhan is a liar.” Farhan says: “Myra and I are different kinds.” Is Farhan a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Isha says: “Rohan tells the truth.” Rohan says: “Isha and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Kabir says: “Yash and I are the same kind.” Yash says: “Kabir is a liar.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Kavya says: “Sneha and I both tell the truth.” Sneha says: “Kavya and I are the same kind.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Vivaan says: “Nisha is a liar.” Nisha says: “Vivaan and I are the same kind.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Isha says: “Nisha and I are the same kind.” Nisha says: “Isha and I are the same kind.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Yash says: “Pooja and I are the same kind.” Pooja says: “Yash and I are different kinds.” Is Pooja a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Omkar says: “At least one of us two, Kabir or I, is a liar.” Kabir says: “Ishaan tells the truth.” Ishaan says: “Omkar and I both tell the truth.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Myra says: “Manav tells the truth.” Manav says: “Myra and I are the same kind.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Pooja says: “Dev and I are the same kind.” Kabir says: “Pooja tells the truth.” Dev says: “At least one of us two, Kabir or I, is a liar.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Saanvi says: “Arjun and I both tell the truth.” Arjun says: “Saanvi and I are the same kind.” Is Saanvi a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Sneha says: “Kavya and I are different kinds.” Kavya says: “Sneha and I are the same kind.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Vivaan says: “Neel and I are the same kind.” Neel says: “Vivaan and I are different kinds.” Kavya says: “Neel tells the truth.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Ira says: “Arjun and I are the same kind.” Arjun says: “Tara and I are different kinds.” Tara says: “Ira and I are the same kind.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Ananya says: “At least one of us two, Rahul or I, is a liar.” Rahul 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. Aisha says: “Omkar and I are different kinds.” Aarav says: “Aisha and I are the same kind.” Omkar says: “Aarav and I are different kinds.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Siddharth says: “Rohan and I are the same kind.” Rohan 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
  34. 34.Each person always tells the truth or always lies. Omkar says: “Arjun and I are different kinds.” Arjun says: “Nisha and I are the same kind.” Nisha says: “Omkar and I are the same kind.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Manav says: “Ananya and I both tell the truth.” Ananya says: “At least one of us two, Manav or I, is a liar.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Arjun says: “Saanvi and I both tell the truth.” Saanvi says: “Arjun and I are the same kind.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Dev says: “Kabir and I both tell the truth.” Kabir says: “Meera and I are different kinds.” Meera says: “Kabir tells the truth.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Neel says: “Rahul and I both tell the truth.” Karan says: “Neel and I are the same kind.” Rahul says: “Karan is a liar.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Rahul says: “Arjun and I both tell the truth.” Arjun says: “Sneha and I are the same kind.” Sneha says: “Rahul and I are the same kind.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Dev says: “Manav and I both tell the truth.” Manav says: “Priya tells the truth.” Priya says: “Dev is a liar.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

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

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