If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

What has to be broken before you can use it?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Through your logical capabilities, can you make 7 an even?

What is the next number in this matchsticks series riddle?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

There was a strange boy who was born before his father. How can this be possible?