Look at the picture and find out which square is not linked with any of the other squares.
Find three whole, positive numbers that have the same answer when multiplied together as when added together.
Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime." How old are the daughters?
Manish and Manoj play 5 games of chess. Both Manish and Manoj win the exact same number of games. There is no tie at all. How?
You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket? (Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)
How many triangles can you count in the figure given?
On a bus, there is a 26-year-old pregnant lady. A 30-year-old policeman. A 52-year-old random woman. And the 65-year-old driver. Who is the youngest?
It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?
You see a boat filled with people, yet there isn’t a single person on board. How is that possible?
Can you start the fire using two pieces of wood?
You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
