Why my car Stall while running on the road?suddenly stop and fail to start.again

What is your question?

My car stall while on the road its mostly happened after 15 or 20 minutes on the road.but after a few engine rest 15 to 20 minutes,its begin to start again

What makes this problem better or worse?

Its worse when it runs 15 minutes

How long has your 2011 Kia Rio had this problem?

For a month