There are 292 different ways (combinations of coins) to make change for a $1 bill. For a $100 bill, you can make change in a little less than 10 trillion ways. Writing down one way per second, you’d need about 312,000 years to list them all.

The father of two-Oscar actor Robert De Niro, also named Robert De Niro, was a celebrity in his own right. What was the occupation of Robert Sr.?

A) Opera singer

B) Painter

C) Football coach

D) Political columnist

Monday’s answer: According to the World Resources Institute, New Zealand has the fewest known native species of mammals, just two besides humans. When first discovered by Europeans, New Zealand had dogs and one species of rat.