Easy what am I riddles for teens

I am pronounced as a one letter alphabet. I am written with three letters. I am complete with just two letters. I am double. I am blue I am black I am brown I am gray I am yellow and I am green. I can read from both ends. I appear the same every way! What am I?

Born of water, I drown in water. A blood-thirsty beast you can barely see. What am I?

I can only live where there is light, but I die if the light shines on me. What am I?

I have a bed but I do not sleep. I have a mouth but I don't eat. You hear me whisper, but I never talk. You can see me run, yet I never walk. What am I?

I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?

Sometimes I am loved, usually by the young. Other times I am dreaded, mostly by the old ones. I am hard to remember, also hard to forget. And yet if you do, You'll make someone upset. I occur every day everyone has to face me. Even if you don't want it to happen; embrace me. What am I?

This is as light as a feather, yet no man can hold it for long. What am I?

I may seem real yet I am not, Once you're gone I'm often forgot. Time here stretches and it shrinks, It all depends on how you think. I may be good, I may be bad, I may be the same as one you've had. What am I?

I’m the end of the colourful rainbow. What am I?

I don't have wings, but I can fly. I don't have eyes, but I will cry! What am I?