Which objects sink in water ?

Which objects sink in kerosene but float on water ?

Heavy objects sink in water and lighter objects float in water. give reason.

Do all objects that sink in water, sink in oil ? Give reason.

Do all objects that sink in water, sink in oil ? Give reason. (AS_(1))

Do the objects that sink in water have a relative density less than 1 or more than 1 ?

Which of the following substances float on water and which one sink in water. Dry leaves, piece of cork,drop of honey,pebble,key,sarson oil.