# There are two people A and B, one is knight & another is knave. A says - At least one of us is a knave. What are A & B?

344 views

There are two people, A and B, each of whom is either a knight or a knave.
A says, "At least one of us is a knave."
What are A and B?

Details and Assumptions:
A knight always tells the truth.
A knave always lies.

posted Jan 16, 2017

A Knave can't say that statement in this situation as he must always lie. And if he said it, it's impossible to be a lie if you think about it. So A must be a knight and since he always tells the truth B has to be a Knave.

answer Jan 16, 2017

Similar Puzzles

Tim: "I am a joker but Tom is a knave"
Tom: "I am not a joker but Tim is a knight"
Jim: "When Tim and I are in the same room, Tim always lies. But when Tom and I are in the same room, he tells the truth"

Knights tell the truth, knaves lie, jokers just mimic anyone who are in the same room with them
There is only 1 knight, 1 knave and 1 joker
Tim and Tom were in the same room while Jim was outside.

Who was the knight?

A place has two kinds of residents, Poor, who always tell the truth, and their opposites, Rich, who always lie. You encounter two people A and B. What are A and B if A says “B is a Poor” and B says “The two of us are opposite types”?

There were 11 apples.

There are four people, Andy, Bob, Chris, and Don who ate the 11 apples.

Andy, Bob, Chris, and Don each ate at least 1 apple, and all of them know this.

Andy says, “Bob, did you eat more than I did?”
Bob replies, “I don’t know. Chris, did you eat more than I did?”
Chris replies, “I don’t know”

After hearing this conversation, Don was able to figure out exactly how many each person ate.

How many apples did each person eat?