I blame innumeracy, but I think if we start simple, with witty bon mots on funny digits (and don't forget the smutty ones!) and simple operations, and once the populace is 'hep' to us, we can pull out the real knee-slappers.

We can gradually work our way up to material like this:

Q. What's green and can be solved using boundary-value methods?




A. Parsley Differential Equations!