Get out your timer and number two pencil to see if your arithmetic skills from grade school are still intact.

Like Liam Neeson in Taken, Presh Talwalkar has a very specific set of skills. They don’t (as far as we know) include hunting down kidnappers and dispatching them in increasingly gruesome and ...

Let’s keep things simple – this is basic math. Nothing scary. Just everyday calculations, a bit of geometry, some number patterns, and the kind of stuff you definitely learned in school at some point.