Why is a river so rich ?

Rearrange the letters in "new door" to make one word.

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What does a man do only once in his lifetime, but women do once a year after they are 29?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

What kind of storm is always in a rush?

The answer I give is yes, but what I mean is no. What was the question?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Why is the longest human nose just 11 inches?