I travel and travel but there is no trail.

I cut and cut but there is no blood.
I chop and chop but there are no chips.

??

The answer to the riddle is "A river".

Here's an explanation of how to get the answer:

This riddle requires you to think metaphorically. Rather than taking the statements literally, you need to identify the common theme or concept being described in each line. Let's break it down:

1. "I travel and travel but there is no trail": Rivers flow and move continuously, yet they don't leave a physical trail behind like footprints or tracks.

2. "I cut and cut but there is no blood": Rivers can cut through and erode rocks and land, but they don't cause any bleeding or produce blood.

3. "I chop and chop but there are no chips": Similarly, rivers can wear away rock formations or carve through the landscape, but they don't create any wood chips like one would expect from chopping wood.

By examining these descriptions, the common characteristic is that the subject continuously moves and modifies its surroundings without leaving typical traces or resulting in expected outcomes. In this case, the solution is a river.