What can you see in the middle of March and April that you can never see in any other month?
When does a USA Potato change its nationality?
What is harder to catch the faster you run?
Which wheel of car does not rotate when you turn your car right?
What part of Turkey has the most feathers?
Can you start the fire using two pieces of wood?
I can be made. I can be cracked. I can be told. I can be played. Who am I?
What does the below mathematical rebus mean?
What kind of tree can you carry in your hand?
What has a bottom at the top?
What begins with T, ends with T, and has T in it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.