Trivia - A Google a Day XVI

What is the imaginary line surveyed between 1763 and 1767 in an effort to resolve a border dispute between colonies in the U.S.?
Mason Dixon Line

What organ do frogs use to assist in hearing in order to avoid damage to their tympana?
Lungs

What will you find on display at the museum in the Gate Tower of Leeds Castle, Maidstone, Kent ME17 1PL, United Kingdom?
Dog Collars

What crawling robot was created at the University of Portsmouth as a reaction to the 1986 disaster in the Ukraine that turned an entire area radioactive?
Robug III

What is the origin of 80% of the population of the island republic that is south of Turkey and west of Syria?
Greek

Considered by many as one of a short list of the greatest NFL players ever, who was referred to as "a fullback who played halfback" by George Allen?
Jim Brown

What band's debut album was named the 13th Greatest Album of All Time, and the "most prophetic rock album ever made" by Rolling Stone Magazine in 2003?
The Velvet Underground

How many U.S. naval ships have been named for the site of the battle won by Gen. Washington against Cornwallis in 1781?
5

Besides being honored as their respective leagues' 1963 MVPs, what did Sandy Koufax and Elston Howard have in common?
Number 32

In what city will you find the 605 ft. structure, designated an historic landmark in 1999, that affords panoramic views of downtown, as well as the surrounding mountains, the bay and nearby islands?
Seattle