The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?
Find out the missing number in the picture attached:
The dirtier I get, the whiter I look. Who am I?
No matter how little or how much you use me, you change me every month. What am I?
A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?
Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one? 5 $ 4 $ 3 $ 9 = 4215 6 $ 9 $ 2 $ 6 = 3816 4 $ 7 $ 3 $ 3 = 1122 7 $ 2 $ 7 $ 4 = ____
Can you find out the next digit in the following series ? 0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?
What always comes into a house through the keyhole?
If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
What goes up but never comes down?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
