It's a test that will check your IQ. Suppose you have one 11 minute hourglass and one 13 minute hourglass. Can you measure exactly fifteen minutes using them ?
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)
Can you find out what is missing? 1 3 5 2 4 ? Hint: It's not six. Think out of the box.
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?
There is a square of a particular number which when doubled, becomes 7 more than its quarter. Can you find the number?
Considering the below equation: V + II - VI = 10 IV - X + VIII = 20 IV - VII + VI = 30 Then, I + II + III = ?
What can jump higher than a building?
A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?
A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.†Who was in the photograph?
A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it. How can he do that?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.