Which city is three-fifths chick two third cat and 50% goat?
How can a man go eight days without sleep?
What building has the most stories?
How is a fly different from a mosquito?
What do you get if you add 2 to 100 four times?
When we see 2 but call 10?
What does an Island and the letter T have in common?
Why did the Girl throw the butter out of the window?
I am sure no one can have two things for dinner. what are they?
Rearrange the letters in "new door" to make one word.
A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.