Answer:
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own. What are they?
Once they sailed the sea, now they surf the web
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
Goes over all the hills and hollows. Bites hard, but never swallows.
Each of these ends in a kettle full of precious metal and the double variety is quite awesome
People take me on walks and I run and have fun. What am I?