Answer:
My teeth are sharp, my back is straight, to cut things up it is my fate.
What runs around all day. Then lies under the bed. With its tongue hanging out?
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
Blend a teapot shot so the pearlies wonβt rot!
If you break me, I do not stop working. If you touch me, I may be snared. If you lose me, nothing will matter.
People take me on walks and I run and have fun. What am I?