If eleven plus two equals one, what does nine plus five equal?
How can you tell a raw egg from a hard-boiled egg?
It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers. But do you know how many of these numbers are prime?
If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?
In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?
I cannot talk, but I always reply when spoken to. What am I?
A blonde put eyeliner on her head. Why?
The cream is heavier than Milk. True or False?
What is the largest number you can write with just 3 digits?
Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?
Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
