Good Riddles

Question: What are the tree mistake in this sentence?

Question: My name is Ruger. I live in a farm. There are four other dogs in the farm with me. Their names are Snowy, Flash, Speed, and Brownie. Who is the fifth dog?

Question: This is this puzzle. This is is puzzle. This is how puzzle. This is to puzzle. This is keep puzzle. This is someone puzzle. This is busy puzzle. This is for puzzle. This is forty puzzle. This is seconds puzzle.

Question: I am the beginning of sorrow, and the end of sickness. You can't express happiness without me, yet I'm in the midst of crosses. You may find me in the sun, but never in the evening. What am I?

Question: Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?