What does this simple rebus mean?
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?
What number comes next in this sequence: 7 8 5 5 3 4 4 _
If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?
Only one colour, but not one size, Stuck at the bottom, yet easily flies. Present in sun, but not in rain, Doing no harm, and feeling no pain. What is it?
John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?
How high do you have to count before you use the letter “a†in the English spelling of the whole number?
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?
On a windy rainy night , I was driving in my car. When i reach the bus stand , i see three people waiting for the bus. 1. An old lady who needs an immediate medical attention 2. My Best Friend 3. Girl whom i love from childhood My car is a two seat, so can you tell me , what i have done in this situation ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.