Word of the Day: Problem

prob-lem / präbləm   noun  
  1. a matter or situation which requires a solution; a question involving doubt or uncertainty
A problem is a chance for you to do your best. Duke Ellington, 1899-1974  
  1. a proposition in mathematics requiring solution by mathematical operation
It’s not that I’m so smart, it’s just that I stay with problems longer. Albert Einstein, 1879-1955  
  1. difficulty in accepting or understanding
If you have a problem with the Moon in the sky and you are unhappy, change yourself, because the Moon won’t change! Mehmet Murat Ildan, 1965-