@juiceme,
How exactly would you want to do that if taps did not work?

@malkavian,
I've had something similar a number of times, always caused by the invisible keyboard bug. Once it happened, the OS-wide gestures (swiping from edges of the screen) continued working but swipes or taps inside the screen did not. The only way out was a reboot (I suppose SSH from another machine and killing maliit would have worked too but a reboot was simpler, especially if I was nowhere near another machine).

Not sure if that is the same problem though.

@Vertu,
'unrar' and 'unzip' work fine in the terminal. For those of a more GUI-esque persuasion, you can use Unrar & Unzip extractor by Schturman. It is nothing but a UI shell (well, sort of) for unrar and unzip and works only in the Downloads folder but it does the job.