Multiple choice general knowledge math & puzzles

There are 3 people standing , they cant see each other, but they all can be seen together. How?

  1. They are on TV

  2. They are blind

  3. They are not facing each other

  4. None of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The answer 'They are blind' is correct because blind people cannot see each other, but can all be seen together by sighted people. This riddle plays on the difference between active seeing and passive visibility.