Train Ride

Riddle: If an electric train is traveling south, which way is the smoke blowing?

Answer: There is no smoke because it's an electric train.

Source: https://www.riddles.com/index.php/11079

If an electric train is traveling south, which way is the smoke blowing? — Train ride by Riddlemaster394 v1.

Riddle: If an electric train is traveling south, which way is the smoke blowing? Answer: There is no smoke because it's an electric train. — by Riddlemaster394 v2.