How good is your sense of money?

What does Amazon earn in a year? What did Warren Buffett pay for his house? How much cash exists? Nobody knows these off the top of their head, but you can reason your way close. Valuely gives you three real figures a day and scores how close you land.

Every answer comes with the working, so your feel for the numbers sharpens the longer you play. Companies, deals, billionaires, economics, sport, property, the everyday stuff. No finance background needed.