There is a box full of marbles, all but two are blue, all but two are green, and all but two are red. How many marbles are in the box?
When I get multiplied by any number, the sum of the figures in the product is always me. What am I?
Which number should replace the question mark?
What does this say? XLR8
I’m tall when I’m young, and I’m short when I’m old. What am I?
A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396. What is the sum of the three digits?
Today, I celebrated my 32nd birthday but I was born in 1972. How is this possible?
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 ?
Can you solve this picture maths equation?
What has many teeth, but cannot bite?
It begins where the time ends. Its second is an expression of surprise. Its third is a question. Its fourth is urinate. It ends with a drink. Which country it is?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
