The correct answer to yesterday’s question was:

The amount of light that passes through the lens.

Five people posted the correct answer and earned an entry in our contest.

Today’s question is sponsored by Transparent Language – a leading provider of best-practice language learning software for consumers, government agencies, educational institutions, and businesses.

What is the origin of the word “checkmate”?

To enter the trivia contest, simply answer the question by leaving a reply in the comments section of this post. Click here for full details about the contest including rules and prizes! Good luck!