How do you go from 98 to 720 using just one letter?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

What will you call your mother's brother's brother-in-law?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?