OK, let's see what we've got here. Counting from left to right, top to bottom:
Coin 1: Islamic. Looks bronze, but then so does coin No. 2. Inside the circle on picture 2 is (I think) "Shah Mohammed", which doesn't help much, as there were plenty of rulers with this name. I'd bet one of the Sultans of Delhi; the style looks very similar to the commonest type of Balban mint coins. That would date it somewhere in the 1200-1500 AD period.
Coin 2: Looks like an Indian States silver rupee, but silver doesn't normally go that nasty green colour. I can't make out enough detail or see any distinguishing mintmarks to carry this one further.
Coin 3: That's a tricky one. I'd guess Kushan Empire (100-400 AD).
Coin 4: Looks like a "bull and horseman"-type billon (base-silver) coin; these were issued throughout Afghanistan and northern India/Pakistan for several centuries (about 800-1200 AD). This one would be towards the end of that date range, when the pictures became so stylized they don't resemble much at all. See the thing that looks a bit like a sniper rifle in picture 1? that's all that's left of the horseman!
Coin 5: Man, you know that annoying feeling when you've seen one of those before, but don't know where?

This one bugged me for an hour before I finally found it: Indian state of Junagadh (in the region known today as Gujarat), 1 dokdo (that's the denomination), year 1965 Vikramasamvat (1908 AD), Krause #45.1.
Coin 6: Sri Lankan, pre-European (roughly 1000 to 1400 AD). I'm not familiar enough with the series to narrow down the ruler, but Queen Lilavati is one that's commonly found.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis