Easy Riddles and Answers

Question: What word is shorter when you add two letters to it?

Question: Shake me and I'll do what you want,
but first you have to pull me from the ground.
I'm on the tip of your tongue and over your shoulder.

What am I?

Question: If a farmer has 5 chickens, two horses, and a wife.

How many feet are on his farm?

Question: You find me behind the stars; or in a sixth, seventh, or third.
It takes something round, a computer, and me to make pie.
I am bigger than anything you can think of.

What am I?

Question: This sentence is false.

Is the preceding sentence true or false?