What metal is the essential ingredient in a dental amalgam filling?

More Questions:

How many wheels does a pair of roller skates have?

What does a chrome-dome have a shortage of?

What organization in the US was co-founded by Ballington Booth?

What was the first mass produced game to use people as playing pieces?

Who is Othello's wife?

What Russian composer wrote the ballet "Swan Lake"?

Which English director founded the Theatre Workshop?

The phrase "banana republic" was first coined by O. Henry in reference to what country?

What is the capital of Barbados?

What movie was the first US movie to have a soundtrack album?

What year did General Sherman order Atlanta be burned?

What network was primarily responsible for leaking over 11.5 million documents, collectively known as the Panama Papers, on April 3, 2016?

The Golden Rain is the common name of what tree?

Giovanni Boccaccio's collection of novellas are known as what?

Bangui is the capital of which land-locked African country?