Only a Certified Genius Can Score Higher Than 20/25 on This General Knowledge Quiz

Only about 10% of the people on earth are left-handed. While many people believe that left-handed people are often more intelligent and more likely to be sickly, these things have not been proven scientifically.

According to this ancient code of law, watering down beer is an offense punishable by death. This may have been because not all water was safe to drink, making it potentially dangerous.

T-shirts were originally marketed to unmarried men. It was assumed they would be ideal shirts for unattached men who could not sew buttons back on collared shirts alone.

It is a misconception that German chocolate cake is named after the country. It's actually named after a man called Sam German.

Cockroach brains are located in their bodies, so they can live for awhile without heads. Over the course of weeks, they starve to death because they cannot eat.

Mosquitos can be very deadly to humans. This is largely because of the diseases they carry.

In the 1700s, people wore fake moles on their faces for beauty reasons. They were often made of velvet, silk or mouse skin.

19th century experts warned women about bicycle face. They were afraid the weird faces they made while biking would become permanently stuck expressions.

The world was once covered in large mushrooms. They were over 20 feet tall.

Cows form best friend type relationships with other cows. The pairs will become stressed out when they are separated.

In the past, ketchup was sold as medicine. This was in the 1830s.

Dolly Parton founded the Imagination Library in 1995. Since then, she has donated 100 million books to children.

People have both finger and tongue prints. Like finger prints, tongue prints are unique.

A chef's hat is called a toque. It's 100 folds are said to represent the 100 ways to cook an egg.

Queen Elizabeth II is the reigning monarch of England. She is also a trained mechanic.

Roughly 1 in 5 adults believe in an alien conspiracy on earth. They think that the aliens are in disguise as humans living among us.

James Buchanan was America's 15th president and served right before the Civil War. He bought slaves from the south with own money often just to free them.

Men are 6 times more likely to be struck by lightning than women and account for nearly 80% of lightning-related deaths. It's thought that this is because men are more likely to have outdoor jobs and less likely to take safety precautions when they hear thunder.

Drying fruit depletes a large amount of its original nutritional value. It can remove up to %80 of its original vitamin and antioxidant content.

Honey has been mythologically connected with mortality. Honey itself never goes bad.

The diet industry is one of the biggest industries in America. On any given day, roughly half of Americans are on a diet.

In 2006, someone attempted to sell New Zealand on eBay. Thousands of dollars were bid before eBay shut the auction down.

Japanese beauty standards are unique. They favor things like crooked teeth and puffy under eyes.

More than half of the people on earth have never received or made a telephone call. The spread of technology is not as complete as many people think.

Butterflies ingest nutrients through their feet. They land on flowers and plants to absorb nutrients.