What goes up but never comes down?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What English word has three consecutive double letters?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?