When I got four, I have it none. When I got two, I have it some. When I got none, I have it all. What is it?
Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.
I am a white box having no key or lid. Yet there is a golden treasure inside it. What Am I?
If eleven plus two equals one, what does nine plus five equal?
There is a place where if I stand up straight, I will still be considered sideways.
A maths symbol is hidden in the below Bar Graph. Can you decipher it?
The following "Brain Bat" means Slow Down. S L O W Using the same logic, can you tell us what does the following Brain Bat means ? E V I G
Can you find out which number multiplied by itself will give the output as 12345678987654321?
Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
How can you make number one disappear by adding something to it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
