What do peace, love, math, Pilates and coffee have in common?

Apparently all are on the Reese Witherspoon Like List, as the actress was seen leaving Pilates class with the custom SIGG bottle (seen here at left) in her bag, a coffee cup in hand.  It’s always good to rehydrate after a workout, after all.

Her choice of bottle raises some interesting questions, and so we shall present them here in a quiz so that you, the readers, might lead us to the best answer: