They replaced one tire on my Toyota with a Korean tire Kuhmo. And the
Tire is so noisy on the roadway. It whines and feels terrible. It is brand
New tire too.

I wonder why??

It doesn't necessarily have to be noisy tires, Oneill474, it could be wheel bearings making the noise. Not good. Have it checked out. Did you have a wheel alignment as well ? Many possibilities.

Tick

Noisy tires can always be traced back to tread design. You NEVER replace just one tire on an axle with a different tire. Too many real world problems.