In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
Can you solve this amazing hard number series problem? 7, 8, 10, 12, 16, 18 ?
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
Can you start the fire using two pieces of wood?
Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?
John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do? But it is quite possible, do you know how?
Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time. However, they still manage to cross the river. How is it possible?
Check out the number list below and find what number comes next in the sequence. 111 , 113 , 117 , 119 , 123 , 137 , ?
Analyze and find the missing item in the sequence: 16, 06, 68, 88, __, 98
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
I always drive my customer away. Who am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.