What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across. How?
How many bananas can you eat if your stomach is empty?
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?
Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?
I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?
There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?
If, 29 - 1 = 30 9 - 1 = 10 14 - 1 = 15 Based on similar logic, Can you prove that the below algebraic equation is true? 11 - 1 = 10 ?
What does the following represent? N N N N N N N A A A A A A A C C C C C C C
That attorney is my brother, testified the accountant. But the attorney testified he didn't have a brother. Who is lying?
A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child. Where's the father?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.