If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
You see a boat filled with people, yet there isn’t a single person on board. How is that possible?
You need to remove two matchsticks to make the below equation true. Can you do it ?
What is black when you buy it, red when you use it, and gray when you throw it away?
Our product and our sum always give the same answer. Who are we?
A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?
Which tank will fill first?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?
Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket. When his friend asked him for a change, he could not give change for a rupee and five paisa. Can you tell which coins he has?
Can you count the number of lines in the below picture?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
