Any. Most popular I've seen as whole school productions are:
Rata and the waka.
Uenuku and HInepukohurangi.
Tutanekai and Hinemoa.
Te Aohurhurhu
I always had a soft spot for the maori legends of tribal mountains. Take for instance the legend about Tarawera, Putauaki and Whakaari. A love triangle that is always a great heart pulling story to depict in modern times such as these.
a good question is when did legends become legends
In Maori, you can say "morena" which means good evening.
In Maori, you say "Morena" for Good afternoon.
good = ka pai
Ka pai usually, or tino pai, depending on the context
A good read would be Jade Taniwha by a NZ Maori / Chinese author Jenny Bol Jun Lee.
A good speech topic on Maori culture could be discussing the significance of traditional Maori beliefs and practices, the impact of colonization on Maori communities, or the importance of preserving and celebrating Maori language and arts in today's society.
Kia manuia - Good luck
To say "that's good" in MΔori, you would say "Kei te pai".
You can say "Kei te pai ahau, mihi" in Maori, which translates to "I am good, thanks."
In Maori, you say "Kia kaha" which can be translated as "stay strong" or "good luck".
Good.