Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?
They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?
I have a clock(12-hour format) and both the needles of the clock overlap at 12:00. After how much time, they will overlap again?
If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set? (2 + 6), (21 + 6), (58 + 6), (119 + 6), ___
It's a protector. It sits on a bridge. One individual can see directly through it, while others wonder what it hides. What is it?
Complete the series by replacing "?" with the correct number. ST ND RD TH '?'
There are forty elephants and they have forty-fore heads. How can this be possible?
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died? PS: Brother is not the answer.
In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.