What are serrated scissors that cut a zigzag edge called?

A college for which circus performers opened in 1968? A college student at the time, Zhang Ziyi played the daughter of a nobleman in which 2000 film? A yellow stray dog adopts a Texas frontier family in the 1860s in which beloved 1956 Fred Gipson novel? Which Madonna album title is also a synonym for loyalty? A Columbia Law School graduate, who married museum designer Edwin Schlossberg in 1986? Which word means both a column of smoke and a feather? Which comic dramatist lived from about 446 to 386 B.C.? A 1937 commemorative half dollar honored which bloodiest one-day battle of the Civil War?