riddles by nathan wu

I'm so fast you can't see me, Though everyone sees straight through me, I don't stop until the day you die. What am I?

What has no beginning, end, or middle?

I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat, and your heart grow cold, I visit the weak, but seldom the bold. What am I?

My head bobs lazily in the sun. You think I'm cute, For my face is yellow, My hair is white, and my body is green. What am I?

I went into the woods and got it. I sat down to seek it. I brought it home with me because I couldn't find it.

What has a head, a tail, is brown, and has no legs?

Comment to the author for the solution to the riddles!