In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.

Where does eastern time zone change to central?
Where in the midwest does the eastern time zone change to central? 
 Midway through Kentucky and Tennessee

The young and the restless how many episodes?
The young and the restless how many episodes as of September 1, 2016? 
 11,000

When was first metro train started in world?

When did the first underground metro railway open? 
 1863