Question 1
Manoj says: 'I always tell the truth'
Meera says: 'Sometimes I tell the truth and sometimes I lie'
Anita says: 'I always tell the truth'
Sanjay says: 'I always tell the truth'
Among them, three are truth-tellers/liars and one is an alternator. Identify the alternator.
Key insight: The statement 'Sometimes I tell the truth and sometimes I lie' is characteristic of an alternator.
- A truth-teller cannot say 'Sometimes I lie' (would be false).
- A liar cannot say 'Sometimes I tell truth' (would be true, but liars always lie).
- Only an alternator can truthfully acknowledge their alternating nature.
Therefore: Meera is the alternator.
- A truth-teller cannot say 'Sometimes I lie' (would be false).
- A liar cannot say 'Sometimes I tell truth' (would be true, but liars always lie).
- Only an alternator can truthfully acknowledge their alternating nature.
Therefore: Meera is the alternator.