You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Can anyone tell me a word in the English dictionary which has a silent 'z'?

I have an eye but still cannot see.

Who am I?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

I guess 76.8% of readers will like this riddle.

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

Which is the smallest number that you can write using all the vowels exactly once?

You were playing ping pong with your friend. Suddenly the ball fell into a narrow metal pipe that was imbedded in the concrete surface of the floor one foot deep. Now you don't have any other ball and you desperately want to take it out and play. You and your friend have your shoelaces, your tennis paddle and a plastic water bottle. However, the bottle cannot fit into the pipe.

How will you take the ball out?

Replace the question mark with the correct number.

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

What is harder to catch the faster you run?