What building has the most stories?
How many words can a pen with half refill write?
Which flower has two lips?
What does an Island and the letter T have in common?
What is the coolest letter in the alphabet?
You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?
He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?
Prove that the below maths equation is true. 8 + 8 = 91
This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?
What is both possible and impossible at the same time?
How many minutes are there in Feb 2017? Note: The shortest answer is the correct answer.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.