Booting D..

Knower came to visit the twin brothers Vintik and Shpuntik, knowing that one of them never tells the truth, and asked one of them: "Are you Vintik?" "Yes," — answered the one. When Knower asked the same question of the second, he received just as clear an answer and immediately determined who was who.

Who was called Vintik?
If they had answered the same, Znayka would not have been able to distinguish between them.

## Solution

If they had answered the same, Znayka would not have been able to distinguish between them. This means the second one answered: "no." Now, if Vintik were the first, it would mean that both told the truth. But this contradicts the condition. Therefore, Vintik is the second, and both of them lied (which is not prohibited by the condition).

## Answer

The second one.