I am afraid this gets very difficult.
2. Likely Euproctis moth Lymantriidae .Many species very similar & white.
http://www.wildlifeinsight.com/wp-co...moth-2687-.jpg
3 & 6.
Mocis frugalis Range Indo-australian pest species. Erebinae, Erebidae.
https://farm1.staticflickr.com/369/3...4b8b7fb2_b.jpg
http://twmoth.tesri.gov.tw/peo/FBMot...cis%20frugalis
4. Ctenoplusia albostriata. Plusiinae, Noctuidae. Indo-australian.
http://lepidoptera.butterflyhouse.co...us/albost.html
http://www.terrain.net.nz/friends-of...bostriata.html
https://www.flickr.com/photos/hkmoth...7617019736934/
The oblique white band may be absent in some forms.
5. Male, looks to be Thyrididae. Correction :Anuga cf. multplicans. Eutelidae.
A similar pix taken in the Andaman Islands but no ID given.
It is possible the female may have more rounded ' normal' wings.
https://farm1.static.flickr.com/652/...de6e1705_b.jpg
TL Seow: Cheers.