Schoolroom chalk contains no chalk. (It's made of a manufactured substance that contains no naturally occurring chalk.)
Boa constrictors don't crush their prey to death. They suffocate them.
More soldiers in World War I lost their lives as the direct result of diseases like influenza than on the battlefield, fighting for their country.
If someone is impatient or anxious, they're "champing at the bit," not "chomping."
Mustard gas isn't a gas--it's an atomized liquid. And what is an "atomized liquid," you ask? Well, it is something else, entirely.
Peacocks don't lay eggs--peahens do. Don't you just want to kick yourself sometimes?
There aren't 50 states in the U.S. There are 46 states. There are four commonwealths, if you want to be picky.
Bagpipes were invented in Iran, not Scotland.
The English horn is neither English, nor a horn. It's a woodwind, and it originated in the Near East. (No, not Long Island.)
Galileo didn't invent the telescope. It was a Dutch optician, Hans Lippershey.
The Immaculate Conception doesn't refer to Christ's having been born of a virgin. The Immaculate Conception is the dogma that holds that Mary was free from original sin from the moment of her conception. (This dogma did not become official until 1854, under Pope Pius IX.)
Big Ben is not the name of the famous clock in England. Big Ben is the clock's largest bell, in reality, which weighs over thirteen tons--much of that heft due to its frequent trips to a local all-you-can-eat fish and chips buffet.
Many believe, wrongly, that West Virginia is farther west than Virginia. Part of Virginia extends fifty miles farther west than West Virginia's westernmost parts. Say that five times fast.
Strawberries are not a berry at all. Strawberries are a fruit of a plant belonging to the rose family.
It is popularly believed that it's illegal to deface U.S. currency. Not true. What's illegal is defacing it and trying to spend it.
"Whistler's Mother" is not the name of that well-known painting. The proper name of this work by James McNeill Whistler is "Arrangement in Gray and Black: the Artist's Mother."
The name of Leonardo's famous work is "La Giaconda," not "Mona Lisa."
Henry Ford wasn't the one who introduced the assembly line to the production of automobiles. Actually, Ransom E. Olds did, in 1901--Ford just improved on the idea.
The famous phrase is not "Money is the root of all evil." It's "For the love of money is the root of all evil." (Found in 1 Tim, 6:10.)
The authors of the Bible did not write "...and they shall beat their swords into plowshares." The plowshare wasn't developed until 600 years after the birth of Jesus. The use of "plowshare" was the result of a quirk in translation. (The Hebrew word was "eth" pronounced, "ayth", which refers to a digging tool.)
There is no such coin as a "penny" in U.S. currency. It is a "cent."
That "black box" they find after air disasters is not black--it is actually orange.