Riddle #1050

Slayer of regrets, old and new, sought by many, found by few. What am I?

Two sisters we are, one is dark and one is fair, In twin towers dwelling we're quite the pair, One from land and one from sea, Tell us truly, who are we?

I am a 5 letter word. Take away the first letter and I am a country's name. Take away the first two letters and I become the opposite of the 5 letter word. Who am I?

I soar without wings, I see without eyes. I've traveled the universe to and fro. I've conquered the world, yet I've never been anywhere but home. Who am I?

Only one color, but not one size. Stuck at the bottom, yet I easily fly. Present in sun, but not in rain. Doing no harm, and feeling no pain. What Am I?

You can hold it without seeing or touching it! What is that?

Some people prefer them with raisins Some like them to contain chocolate chips Whichever kind of these you like though They don't last long once they've passed your lips What are they?

I may seem real yet I am not, Once you're gone I'm often forgot. Time here stretches and it shrinks, It all depends on how you think. I may be good, I may be bad, I may be the same as one you've had. What am I?

Where can you find rivers with no water, cities with no buildings and forests with no trees?

I eat other animals. I have a big mouth. I am green. I live in the water. Who am I?

I have all the knowledge you have. But I am small as your fist that your hands can hold me. Who am I?