The ones with the elephant (#3, 4 and 5) are from the Indian kingdom of Mysore, during the late 1700's.
All three of these coins are dated, but those aren't necessarily "normal" Islamic dates. Mysore sometimes used a unique calendar, the "Anno Mohammed" calendar.
#3 is the clearest, it's dated AM 1221 (= 1792 AD).
How big are they? that will help tell the denomination. A browse through Krause shows a bewildering selection of types and varieties, all dated around the same time.