Three elephants are standing in a row. Each one can see the other two. If the first elephant says, 'I see two elephants,' what can the second elephant deduce?

Category: Brain · Difficulty: hard

Hint: Consider the implications of visibility.

Answer

The second elephant knows the first can see him and the third.

Explanation

The second elephant understands that the first sees both him and the third, confirming their presence.

This is a hard brain riddle — a tricky one that takes a little thought. The answer is The second elephant knows the first can see him and the third..

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