Misc: In what TV series would you find Judge Henry Garth & Trampas?

Questions

what does the postage stamp cancellation o.h.m.s. mean on (his/her) majesty's service?

of all the planets - which is the largest?

what was the crime committed for those dwelling in dante's lowest level of hell in his work, 'the inferno'?

what was the last animal to be tamed as a food source?

where is arthur c. clarke presently residing (as of 1999)?