Do You Know?

National Guard Bureau

WASHINGTON, April 23, 1998 – What do you call a group of toads?
A knot

Who was the only president to also serve as chief justice of the United Staes?
William Howard Taft

What is the deepest lake in the United States?
Crater Lake, Ore.
(1,932 feet)

Where does the term Mach, used to describe supersonic speed, come from?
Ernst Mach, a Czech-born, Austrian physicist, who contributed to the study of sound

What is the most abundant mineral in the human body?
Calcium