Good Riddles

Question: It's the beginning of the universe and the end of every place. It's the beginning of Everything and the end of every race. What am I?

Question: If wanted, use paper!, You may only put 1 line on a number!, how?, thats up to you: 5 + 45 = 450?!.. 883 x 2 = 1776?!.. 282 - 6 x 0 = 288?!..

Question: There are these polar bears. And one day they decide to go fishing. So they go out on the ice, they cut a hole, and they sit around it. They catch 2 Karp and 7 Blue Gill. They say, that was some good fishing. Let's roll the dice. They role a 4 and a 3. How many polar bears were there?

Question: People are scared of me but I am loved by some. I can be your best friend but could become your enemy in a blink of an eye. What am I?

Question: I am longer than trees I am longer than earth ...but lower than grass What am I?