A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?
In the image given, you can find several triangles. Can you count them all?
The dirtier I get, the whiter I look. Who am I?
Why are all black people so quick ?
What has many keys but can’t open a single lock?
Find three whole, positive numbers that have the same answer when multiplied together as when added together.
Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?
Find The Next Number in this series. 1, 2, 6, 42, 1806 ?
Can you fill the blank with the correct number? 6 30 870 756030 _____
Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?
Find the Odd One Out? 84129 32418 47632 36119 67626 72927
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.