1) + 2) - I have no idea what male sunbird this is. It doesnt' fit the green or blue headed sunbirds because of how far it extends but I didn't see evidence of any red.
3) Is this a male Northern Brown-throated Weaver? Wasn't entirely sure with colourings and their extent...
4) A Woodland Kingfisher? (Someone told me Malachite Kingfisher but the beak colour and lack of orange suggested otherwise?)
5) Could this be an Olive Sunbird?