Multiple choice general knowledge math & puzzles

A metro train is going from east to west and a strong wind is flowing from south to north... In which direction does smoke from the train go ?

  1. North West

  2. North

  3. Up

  4. None of the above

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

Metro trains are electric and produce no smoke. This is a classic riddle testing attention to basic facts rather than overthinking about wind direction. The wind direction information is irrelevant distraction.