**A Series of Middle-Grade Mystery Novels by John Madormo**

**Charlie here. Charlie Collier, Snoop for Hire, that is. I can't begin to tell you how many hundreds of brain teasers I've solved in my time. It might have been a riddle that Henry tries to stump me with at lunch in the cafeteria...or a science brain buster that Mrs. Jansen poses in class...or a real brain wobbler that presents itself in the midst of a full-blown investigation. Whatever the circumstances, I'm ready. I just call upon my amazing deductive reasoning skills, and in no time, the problem's solved.**

**Do you think you have what it takes to become a real private eye? You think so, huh? Okay, let's find out. Here are a few of my favorite brain teasers. See how you do. *** *

**1) There are three houses. One is red, one is blue, and one is white. If the red house is to **

** the left of the house in the middle, and the blue house is to the right of the house in the middle, where is the white house?**

**2) I exist only when there is light, but direct light kills me. What am I?**

**3) Where's the only place on Earth where Friday comes before Thursday?**

**4) How many months have 28 days?**

**5) If four peacocks lay four eggs in four days, how many can one peacock lay in eight **

** days?**

**6) How much dirt is there in a hole that is four feet deep with a diameter of three feet?**

**7) Why are round manhole covers safer than square ones?**

**8) A rope ladder hangs over the side of a boat and just barely touches the water. The **

** rungs of the ladder are six inches apart. If the tide rises three feet, how many rungs will **

** be under water?**

**9) How many times can you subtract the number 5 from the number 100?**

**10) If June equals 50, and July equals 68, then what would August equal?**