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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 121 · 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. Yash says: “Vivaan tells the truth.” Vivaan says: “Yash and I are different kinds.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Ira says: “Aditya and I are the same kind.” Myra says: “Ira is a liar.” Aditya says: “Myra and I are the same kind.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Rahul says: “Kavya and I are the same kind.” Kavya says: “At least one of us two, Rahul or I, is a liar.” Tara says: “Kavya is a liar.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Myra says: “Priya and I are the same kind.” Priya says: “Myra is a liar.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Ishaan says: “Tara tells the truth.” Tara says: “Ishaan and I are the same kind.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Rahul says: “Meera and I both tell the truth.” Meera says: “Rahul and I are the same kind.” Kabir says: “Rahul tells the truth.” Is Rahul a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Ananya says: “Vivaan and I are the same kind.” Vivaan says: “Ananya tells the truth.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Rohan says: “At least one of us two, Aarav or I, is a liar.” Aarav says: “Rohan is a liar.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Tara says: “Manav and I are the same kind.” Manav says: “Tara and I both tell the truth.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Manav says: “Ira tells the truth.” Ira says: “Manav and I are the same kind.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Riya says: “Aarav and I are the same kind.” Aarav says: “Riya and I both tell the truth.” Is Riya a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Nisha says: “Omkar is a liar.” Tara says: “Nisha is a liar.” Omkar says: “Nisha and I both tell the truth.” Is Nisha a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Zoya says: “Meera and I both tell the truth.” Meera 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
  14. 14.Each person always tells the truth or always lies. Vivaan says: “Ira and I are the same kind.” Ira says: “Vivaan is a liar.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Neel says: “Ananya and I both tell the truth.” Ananya says: “Neel is a liar.” Diya says: “At least one of us two, Neel or I, is a liar.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Diya says: “Tara and I are different kinds.” Tara says: “Diya and I are the same kind.” Is Tara a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Farhan says: “Kavya and I are the same kind.” Kavya says: “Farhan tells the truth.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Nisha says: “Isha tells the truth.” Isha says: “Dev and I are different kinds.” Dev says: “Isha tells the truth.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Aisha says: “Kavya and I are the same kind.” Kavya says: “Aisha and I both tell the truth.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Sneha says: “Pooja and I are the same kind.” Pooja says: “At least one of us two, Sneha or I, is a liar.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Nisha says: “Zoya and I are the same kind.” Zoya says: “Nisha and I are different kinds.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Pooja says: “Neel and I both tell the truth.” Neel says: “At least one of us two, Pooja or I, is a liar.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Rohan says: “At least one of us two, Rahul or I, is a liar.” Rahul says: “Rohan and I both tell the truth.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Siddharth says: “Karan and I both tell the truth.” Karan 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
  25. 25.Each person always tells the truth or always lies. Saanvi says: “Kavya tells the truth.” Kavya says: “Saanvi and I are the same kind.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Ishaan says: “Tara is a liar.” Siddharth says: “Tara and I are different kinds.” Tara says: “Siddharth 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. Meera says: “Ananya and I are the same kind.” Ishaan says: “Ananya tells the truth.” Ananya says: “Meera and I are the same kind.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Nisha says: “At least one of us two, Myra or I, is a liar.” Myra says: “Nisha and I both tell the truth.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Zoya says: “At least one of us two, Kabir or I, is a liar.” Sneha says: “Zoya is a liar.” Kabir says: “Sneha and I both tell the truth.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Dev says: “Rohan and I both tell the truth.” Rohan says: “Dev and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Rohan says: “Manav and I are the same kind.” Manav says: “Rohan tells the truth.” Is Manav a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Aditya says: “Sneha and I are the same kind.” Sneha says: “Aisha tells the truth.” Aisha says: “Aditya and I both tell the truth.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Neel says: “Priya and I are the same kind.” Siddharth says: “Neel is a liar.” Priya says: “At least one of us two, Neel 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. Diya says: “Neel and I are different kinds.” Neel says: “Diya tells the truth.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Meera says: “Aarav and I are different kinds.” Aarav says: “Meera 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. Neel says: “Dev tells the truth.” Dev says: “Neel and I are different kinds.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Neel says: “Nisha and I are different kinds.” Nisha says: “Neel tells the truth.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Vivaan says: “Meera tells the truth.” Meera says: “Vivaan and I are different kinds.” Kavya says: “Meera is a liar.” Is Meera a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Saanvi says: “Karan is a liar.” Karan says: “Saanvi and I both tell the truth.” Is Karan a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Omkar says: “Rohan and I are different kinds.” Rohan says: “Omkar and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

  1. liar
  2. liar
  3. liar
  4. liar
  5. truth-teller
  6. truth-teller
  7. truth-teller
  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. truth-teller
  18. liar
  19. truth-teller
  20. liar
  21. truth-teller
  22. truth-teller
  23. truth-teller
  24. liar
  25. truth-teller
  26. truth-teller
  27. truth-teller
  28. liar
  29. liar
  30. truth-teller
  31. truth-teller
  32. truth-teller
  33. truth-teller
  34. liar
  35. liar
  36. liar
  37. liar
  38. liar
  39. liar
  40. liar

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