A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

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

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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

It is always ahead of me yet I can never see it. What is it?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

It belongs to you, but other people use it more than you do. What is it?

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