## Solution to Puzzle #104: Togglers Puzzle

Apologies for an inordinate delay in posting the answer to this puzzle. I was on vacation with children over the last 3 weekends 🙂

This was a very interesting, though a slightly difficult puzzle. I got 4 correct answers from Akshay Joshi, Jyotsana Dube, Maneesh Dube and Suman Saraf – congratulations! Answers from everyone were the same, I am reproducing the answer from Maneesh Dube, who captured it most succinctly.

The first question is going to be-“are you a toggler?”. There are two possible answers that the person can give:

1. If answer was a “No”, then you know that your next answer will be true (no matter who you ask). Your next question will be-“who is the truth teller?”

2. If answer is “Yes”, then you know that it is a toggler because the truth teller will say no. You know that your next answer will be a lie. So your next question will be-“who are not the truth tellers?”

Akshay, also added a note in his answer with a link to another source which is a similar puzzle, please do check it out.

“I think you should checkout the Knight and Knaves
puzzle by Smullyan (and its numerous variants) which is similar to
http://en.wikipedia.org/wiki/Knights_and_Knaves

Hope you all enjoyed the puzzle!

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