Easy Riddles and Answers

Question: I shoot people and sometimes cut off their heads. What am I?

Question: I have 3 eye colors yellow red and green when the red eye opens everybody freezes. What am I?

Question: Tear one off and scratch my head. What once was red is black instead. What am I?

Question: Why was the mouse afraid of the water?

Question: Resurrected, they descend by the millions. Sometimes, to nourish and give life. Other times, to take lives or destroy. They have been known to fill entire valleys and block roads only to disappear before executing their long journey back to the top. What are they?