1- a situation when you waited for a bus or a train 2- a challenging profession you know about

What’s the difference between men and women’s preference on cars?
A.
 
Future is entirely unpredictable but there are few possibilities that the cars 
will fly on the air. It may sound weird now but after twenty to thirty years, the 
world will experience cars those are flying in the sky. Air terminals will be set in 
different parts for the flying cars. Some of the cars would be able to drive 
through the water. Science fiction movies frequently show such cars which are 
flying or driving through water but I think the scenarios will be as usual shortly 
in the real life world. Humans have done things which were unimaginable 
before those were done and someday this idea may also be materialised if 
everything goes well in the world.