How can a man go eight days without sleep?
John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age. Can you find their ages?
Next Number in the Series, 5, 16, 49, 104, ?
A man dies of old age on his 25 birthday. How is this possible?
Which is the correct shadow of the bird?
A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?
What does this Rebus Picture means ?
What is black when you buy it, red when you use it, and gray when you throw it away?
What word begins and ends with an E, but has only one letter?
Can you identify the direction in which this bus is moving; left or right? Hint: The bus is moving on the roads of London.
Which alphabet is a part of our body?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
