Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?
Using Only Five 5's and any mathematical operator make sum as 37
Can you count the number of children in the picture below
Given below is simple addition with a defined pattern pattern: 7 + 7 = 2 8 + 8 = 4 8 + 5 = 1 6 + 9 = 3 10 + 11 = 9 Can you analyze the pattern and find out the answer for: 4 + 9 = ?
I have nine bottles of wine and one of the nine bottles is poisoned. I need to find the poisoned bottle with two facts (1) Poison is deadly, only a sip will cost death (2) I have two mice to do so. How should I do it?
A word I know has six letters it contains, remove one letter and 12 remain. What is it?
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?
On a bus, there is a 26-year-old pregnant lady. A 30-year-old policeman. A 52-year-old random woman. And the 65-year-old driver. Who is the youngest?
What jumps when it walks and sits when it stands?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.