I keep things green and keep kids happy during summer time. What am I?

Answer: Sprinkler

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More What am I ?

I know a thousand faces, and count the tailed heads, feasting bright upon the eyes, of many who have died. Wielding well a mighty power, who hath but humble stature. Masses fall upon their knees, to scarce behold my only side. What am I?
I let water fall on you while everyone else stays dry. What am I?
I lie in the earth, and under the ground; A map may reveal me for journey's abound; I can be found in squares, to reduce down to size; Or at the end of a strand, where attachment lies. What am I?
I like to twirl my body but keep my head up high. After I go in, everything becomes tight. What am I?
I live above a star who never burns. I have 11 neighbors but they never turn. My initial are p, q, r, and sometimes s. What am I?
I live in a busy place in the city, I’ll let you stay with me for a while, If you don’t feed me, I can get you into trouble. What am I?
I live in a spooky castle or even in a cave, I sleep upside down and I am so creepy that people run because they’re scared. What am I?
I live in my little house all alone. There are no windows or doors, and if I want to go out I have to break through the wall. What am I?
I live in the corn, and my job is to deter. Free from pests your crops I assure. What am I?
I live next to beauty trying to catch your eye. Grab me without looking, and you're surely to cry. What am I?
I look at you, you look at me I raise my right,you raise your left What am I?
I look like a tiny trombone. What am I?