Take Our Head-scratching Hoax Quiz

Two men were found to have made crop circles for at least a decade, and inspired others to do the same, all to trick people into thinking that aliens were responsible.

Toft and her husband hid baby bunny rabbits under the sheets and pretended that she was giving birth to them. She was apparently very distressed, having suffered a miscarriage only the month before. She even went so far as to put animal parts in her vagina!

"War of the Worlds" first aired as a radio broadcast and many people missed the disclaimer at the beginning that it was fiction and thought it was real. Hysteria ensued.

Although mostly conceived to swindle people out of money, those who believed in the Cardiff Giant said it was proof of giants depicted in the Bible. But one of the men behind the hoax was an atheist and said that the trick showed how simple it is to fake such things.

If bad press is to be believed, Bieber has so far died twice by suicide, once in a shooting and once of an overdose. Obviously, none of those are true, as the Biebs is still alive and well.

The same fake shark photo circulated after previous hurricanes, and was even aired on television by an egg-faced reporter.

The "balloon boy" story made huge headlines as people hoped for Falcon's safe return. When the hoax was revealed, his parents were arrested, charged, sentenced and fined.

In 2017, a freelance writer created a fake listing on Tripadvisor for a restaurant, complete with photos, a menu and a website. He asked friends and family to write lots of glowing reviews. It eventually got to the No. 1 position on Tripadvisor before he exposed the whole thing.

Known as "The Hitler Diaries," they were proved to be nothing but bad forgeries after a newspaper forked over big bucks to buy them.