Answer to 3) is b) A crack appeared over time. The story of the Liberty Bell has a lot of twists and turns. A good summary can be found on the National Park Service's page for the Liberty Bell Center:
A bell for the Pennsylvania State House was cast in London, England, however, it cracked soon after it arrived in Philadelphia. Local craftsmen John Pass and John Stow cast a new bell in 1753, using metal from the English bell. Their names appear on the front of the bell, along with the city and the date. By 1846 a thin crack began to affect the sound of the bell. The bell was repaired in 1846 and rang for a George Washington birthday celebration, but the bell cracked again and has not been rung since. No one knows why the bell cracked either time.
Ready for an easy one?
4) The first 10 amendments to the U.S. Constitution are generally known by what name?
a) The Treaty of Versailles
b) The 10 Commandments
c) The Bill of Rights
d) "Don't Tread on Me"
