Kukri numbers one and two, very nice civilian Mk3 variants, manufacture would be unknown, definitely made in India.
Kukri number three, looks like a high quality civilian kukri
Kukri number four, outstanding dui chira kukri, anywhere from late 19th century to very early 20th century.
Kukri number 9 is I would say Indian made around the WW2 era, almost sirupate in style
Kukri number 10, British Service issue, they been issued with that style of decoration from time to time, the sword of Shiva description is actually incorrect, it is just a form of decoration.
Kukri number 11 is a Budhune style kukri, potentially a tourist version
Kukri number 12 is a high quality tourist piece
Kukri number 5 is one of the IA styles of kukri issued in WW2 to Gurkhas, so whether this is one of those that has been chromed for keep sake (as many were, indeed Lt. Col. Cross had all his chromed), or whether it is a later export piece is hard to tell.
Kukri numbers 6 & 7 tourist kukri
Kukri number 8 Indian made kukri, probably WW2 era.
I hope that is of some help, Cheers Simon