Good Riddles

Question: I fly like a bird of many colors through the sky. i am made with both wood and fire but i do not burn up.You can see me clearly during the day, but i am nearly invisible at night. What am I?

Question: What's green & yellow & red all over

Question: If we breathe oxygen in morning what do we breathe at night?

Question: I am a 3 letter word spelled with 3 different letters, and if you reverse the spelling of the word, it will sound the same. What word am I?

Question: How do you run around your block 10 times without breathing heavily?