February 10, 2012 2:16 pm Faith Hill and Tim McGraw Test Their Marriage IQ Faith Hill and Tim McGraw have been married for 15 years, but how well do they really know each other? Faith and Tim’s marriage IQ is tested in a hilarious Couples Uncensored. Local 1:36 WATCH: Some of the most talked about looks at the Met Gala 2:23 Climate change is moving Tornado Alley and driving more tornado outbreaks 1:47 Reese Witherspoon and Ryan Phillippe's daughter Ava calls out body shamers 1:41 Trump fined additional $1,000 for gag order violation and threatened with jail 0:53 Man attempts to shoot pastor during church service