A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?
What happened when the wheel was invented?
There is a square of a particular number which when doubled, becomes 7 more than its quarter.
Can you find the number?
The more it dries, the wetter it becomes. Can you tell what it is?
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
My location can be determined by the below rebus.
So where am i ?
Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?
Alpha is Beta's sister.
Gamma is a Beta mother.
Delta is Gamma's father.
Tango is Delta's mother.
Then,
How is Alpha related to Delta?
In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.
Can you calculate the percentage of students that study all four subjects?
using four eights (8) and a one (1) and one mathematical symbol , create the number 100
Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki