there are a lot of stupid facts at
www.dumblaws.com
an example: in Chicago (if i remember correctly) it is illegal to eat in a restaurant that's on fire.
Also, what is the most common first name in the world? If you guess "mike" or "jenny" it is actually Mohammed, because Islam is the most widespread religion in the world.
What is the most popular last name? Wang (my geography teacher Dr.Wang said this of course)...because China has the biggest population in the world.
Who is the most famous geographer? Michael Jordan. (he majored in that field.)