Big Dick Math Problems

Johnny is 7.5" long. Sally wants to fuck 1 mile of dick. How many full length thrusts must Johnny perform to grant her wish?

15cc equals 1HP. What girth is required for an 18cm stroke penis piston to produce 22HP of thrust?

A penis measures 7" with a ruler and 7.5" with a tailor tape following it's curve. If the penis length continued following it's curve, how long would it need be to complete a full circle?