Which country gets ill every time?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

I guess 76.8% of readers will like this riddle.

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

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

What has many teeth, but cannot bite?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Can you place six X (crosses) in below board without making three in a row in any way ?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

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?