1. How do we know Mizaru, Kikazaru and Iwazaru better?

2. If you were reading the Snellen chart, what would you be doing?

3. What is the term for the difference between the value of money and the cost of its production?

4. What was the last name of the British Royal Family before it was changed to Windsor?

5. Which movie mogul lends his name to illogical malapropisms like "Include me out" and "I may not always be right, but I am never wrong"?

For the answers, please visit: ten things i didn't know until last week.