Can you name some countries which do not have the alphabet 'A' in them?
Replace the question mark with the correct number in the below-given picture?
It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?
Spot what is wrong here in 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 occurs twice in a week, once in a year but never in a day?
There are two words one resembles the "state of rest" and the other is related to "writing/reading material". Can you name these two words which also sound similar?
Who has married many women but was never married?
While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side. How many houses are there between your home and your grandmother's home?
Railroad Crossing, look out for the cars. Can you spell that, without any R's ?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.