Title: Incandescent light bulb.
Question: What material were the first light bulb filaments made from?

Title: Post-punk.
Question: What did some post-punk artists reject their previous avant-garde practices to pursue?

Title: Queen Victoria.
Question: Who was believed to be the father of Lady Flor's "baby"?

Title: Buckingham Palace.
Question:
Which king fled to London leaving allowing the Royal family to keep it's freehold on the property?