A path with walls, a winding craze Find your way through: I’m a

Poor people have it Rich people need it If you eat it you die What is it?

I am an odd number Take away a letter, and I become even What number am I?

I’m something you can copy perfectly, yet the original never disappears. I get smaller when you compress me, but smarter when you train me. I live in layers, travel in packets, and die when corrupted. People argue whether I should be free.

I sound like I'm a man who's been kissed by the sun. I'm featured in a subject many consider unfun. Our paths will not cross, but we'll meet at one. Oh by the way, do you like puns?