Can you count the number of lines in the below picture?
Can you spot what's wrong with the following sentence? PETER WAS ANGRY AT HIMSELF BECAUSE HE ACCIDENTALLY LEFT THE THE KEYS TO HIS CAR AT HIS FRIEND'S HOUSE.
What does this mean? CCCCCCC
You are given four results as below: 1111 = F 2222 = E 3333 = T Then, can you find out how to code 4444?
No matter how little or how much you use me, you change me every month. What am I?
What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?
In the picture given below, can you find out which digit will take place of the question mark?
Use only one mathematical symbol and all numbers (0-9) to get a sum of 99
I am a white box having no key or lid. Yet there is a golden treasure inside it. What Am I?
A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?
What has 88 keys?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
