Salam,
A few knives to submit, see attached photos. I think all 3 may originally be from the regions near India? and found there way to the UAE...
Hook/Sickle Knife:
Looks to be in a style used for harvesting or skinning...although maybe not for everyday use with a brass handle formed at the hilt into the shape of a tiger/lion head and some decorative blade patterning.
The overall length of the knife is 250mm.
Folding/Flick Knife:
Not in great condition and on its second handle replacement! This knife looks to have an old rusted flick or locking mechanism (unfortunatley i dont have any better photos than this).
Utility Knife:
Looks to have a bone handle which is comfortable to grip. I have seen similar knives which where stated as being used many years ago by prositutes for protection... or then again it might just be used in the kitchen!
For the forums opinions on origin, use, age, etc