How to riddles

QUESTION:

ANSWER:

QUESTION:

ANSWER: The 4 you took

QUESTION: You will always find me in the past. I can be created in the present, but the future can never taint me. What am I?

ANSWER: History

QUESTION: What belongs to you but others use it more than you do?

ANSWER: Your name

QUESTION: What is harder to catch the faster you run?

ANSWER: Your breath

QUESTION: I don't have eyes, but I did once. Once I had thoughts but now I'm white and empty. What am I?

ANSWER: skull

QUESTION: The more you take the more you leave behind. What am I?

ANSWER: Footsteps

QUESTION: What is big and yellow and comes in the morning, to brighten mom's day?

ANSWER: The school bus

QUESTION: I go in hard. I come out soft. You blow me hard, what am I?

ANSWER: Gum

In the comments please leave guide ideas, l will try to do all of them. THANKS