Title: Green.
Question: What is produced on a computer display when light from the green primary is mixed with some light from the blue primary?

Title: Frederic Chopin.
Question: What did Chopin create for Grand Duke Constantine?

Title: Incandescent light bulb.
Question: Where in the bulb is evaporated tungsten deposited when a vacuum is used?

Title: Josip Broz Tito.
Question:
Tito had cordial relations with the United States and what other Western area?