For easy summer fun, here’s a (sort of) riddle:

If a black cat crosses in front of you and then crosses back, is your bad luck doubled or canceled?

There are many ways to choose, but ONE way in particular is a sci/math answer. What is it?

SOLUTION TO SCHOOL BUS PROBLEM from June 5.

Which way is the school bus going?

Since there’s no DOOR on the side we’re looking at, and the driver has to be on the left side of the bus, she must be on the close left side in the figure, driving to the left.