When it's bad luck to meet a black cat?
I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?
If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten. How is this possible?
In which direction should the missing arrow point?
If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?
I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?
Why is it very easy to weigh a fish?
Solve the equation by replacing the alphabet with numbers. MOM + MOM + NO = BOOK=
What is the last thing you take off before bed?
You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely? DONALD +GERALD =ROBERT
If, 20 % 5 = 24 21 % 7 = 33 42 % 6 = 67 Then; 66 % 6 = ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.