Hannibal Barca said:
What is the maximum number of attacks a Monk 4/ Ranger 5 thrikreen with the Multiweapon Fighting feat can attempt in one round? :\
Ahah - he's got multiweapon fighting, does he?
He starts out with BAB +8 / +3.
Then, in that case, put kamas or other monk weapons in each of his hands.
Now, make his unarmed strike his primary attack - which can be done with, say, his feet. Flurry. Invoke MWF.
This gives him +4 / +4 / -1 unarmed strikes (-2 penalty for Flurry, -2 penalty for TWF with a light off-hand weapon).
Then, make "off-hand" attacks with his kamas. That's four more attacks at +4 (-2 penalty for Flurry, -2 penalty for TWF with a light off-hand weapon).
This gives him a total of 7 attacks: +4 (US) / +4 (US) / +4 (K) / +4 (K) / +4 (K) / +4 (K) / -1 (US).
This may be better than the non-Flurry, natural weapons case depending on how magical his weapons are. The NFNW case would be:
Unarmed Strike is his primary weapon: +8 / +3
Then, make four secondary natural attacks with his claws: +3 / +3 / +3 / +3 (-5 penalty for secondary natural weapons)
Then, make 1 secondary natural attack with his bite: +3 (-5 penalty for secondary natural weapon)
This gives him a total of 7 attacks: +8 (US) / +3 (US) / +3 (C) / +3 (C) / +3 (C) / +3 (C) / +3 (B).
Note that, whichever you choose, you can pretty freely choose the order of your attacks. The only rule that you need to follow is that your multiple attacks from high BAB (in both cases, this only applies to two unarmed strike attacks) must be in order from highest to lowest.
EDIT:
Oh - and if your next level is in ranger, you get the Improved Multiweapon Fighting feat. That's 4 more attacks in the first set-up.