Answer:
A kind of weather that comes your way, but add a "D" and it will run away
What has a single eye but cannot see?
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
Of no use to one, Bliss to two. Men lie for it. The baby’s right,
People take me on walks and I run and have fun. What am I?