answer to riddle 29 (Might be offensive though...But bare with it please?): Diemond.
or you can say diamond. Either way, you pronounce it DIE-M-ND or something like that...
Riddle 30:
What jumps when it walks and sits when it stands?
Huh? What did I just read? *Re-reads* I don't understand... *Reads answer* .... *Smash head through a wall and sees birds which are now staring at this weirdo* ...um...