What is the Surname of Barbie Doll?
Can you calculate the probability of getting a sum of six when a dice is thrown twice?
When is the top of a mountain similar to a savings account?
What do you see in the image below
What you cannot hold but it is yours?
Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.
A plane crashed between the border of Mexico and America. Where do you bury the survivors?
Where do you go to learn how to make ice cream?
I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?
How many words can a pen with half refill write?
What is black when you buy it, red when you use it, and gray when you throw it away?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
