What two things can you never eat for breakfast?
He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?
A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?
You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth. How long would it take for the machine to cut the roll if each cut took 4 secs?
There is a square of a particular number which when doubled, becomes 7 more than its quarter. Can you find the number?
Can you find the missing piece of the Porsche?
Can you find the missing number in the third row? 35 20 14 27 12 18 5 2 ?
Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error? x = 9.999999... 10x = 99.999999... 10x - x = 90 9x = 90 x = 10
Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?
There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
