A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

I am an odd number. Take away a letter and I become even. What number am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?