What seven-letter word has hundreds of letters in it?

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?

What is full of holes but still holds water?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

What happened when the wheel was invented?

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?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?