What am I?

Take away my first letter, take away my second letter, take away all my letters and I would remain the same. What am I?

Although I'm far from the point, I'm not a mistake. I fix yours. What am I?

What has 13 hearts but no other organs? HINT - it is in the shape of a rectangle

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Riddles and Answers