Thanks guys. Sorry, I got sidetracked. So I cleaned up all the chain/sprockets and whole bike yesterday. Utilized kerosene for all chain and sprockets/grime cleaning.

In the front wheel, there seem to be a small wobbling not sure how to define it. If I hold the wheel from the wheel and try to shake, it makes a slight noise. Does it need to be tightened or greased or front brake can be loose and making that noise?

Also, rear the brake is sticking from the lever. What's the best way to clean/lube these cables and brakes?