Kiana has two older twin brothers. The product of their three ages is 128. What is the sum of their three ages?
//
Spiciness: * out of ****
//
(Today’s puzzler comes from the 2009 AMC 10 exam.  Learn more at dtmath.com/amc.)

08: Strawberry ice cream [***]

Easy to visualize but challenging to solve: that's the kind of math puzzle you get here, one per episode. (Do you love the Car Talk Puzzler too? Yeah, that's what I'm trying for here, only with even more of a math bent.)