Why is a river so rich ?

What can go through glass without breaking it?

In which direction should the missing arrow point?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What is so fragile that saying its name breaks it?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

How can a man go eight days without sleep?

Can you find the missing piece of the Porsche?