unanswerable questions

anita on bbc radio five live just now has been asking listeners to send in unanswerable questions. here are a few that caught my ear:

why isn't 'phonetic' spelt the way it sounds?

why do kamikaze pilots wear helmets?

what did we get back to before we had drawing-boards?

if you can be overwhelmed and underwhelmed, can you be whelmed? (i like this one a lot)

if you choke a smurf, what colour will it turn? (a listener texted in to say that since smurfettes blush, the smurf would turn purple)

who put an 's' in 'lisp?

finally, in response to the statement that there is no word that rhymes with 'orange', a listener directed us to abergavenny where may be found the blorenge mountain. i don't know, i think you need to say them both in a welsh accent ...