What is a smoking gun? Where does the phrase come from?

Which language has the most words?

Which languages do Americans speak at home?

Top 10 words with the most entries in the Oxford English Dictionary?

Top 10 words with most OED entries? What do they have in common?

The most versatile word in the English language?

Most popular word in English?

Most common spelling mistakes in English?

What is Asperger's Syndrome? What is an ASD?