Name The Year: Churchill resigns as Britain's PM.?

Questions

How did racey Emin shock the art world in 1999?

Tha name of which Caribbean island means land of many springs?

Calamine, used to treat stings and burns is a carbonate of which element?

What type of creature is a colobus?

Which physicist was in charge of the Manhattan Project at Los Alamos to develop the atomic bomb and subsequently promoted the peaceful use of atomic energy?