Want to play a general knowledge quiz?

Final Quiz for today
Quiz will run for 30 minutes.
Attempt all questions using this format,
1 - your answer
2 - your answer
3 - Do not know
4 - your answer
5 - Do not know.....
Your first answer will be your final answer, no editing allowed.
After 30 minutes, the person with the most correct wins. In the event of a tie, all will receive a Prize to the same value

1 - What is the Atomic sign for Helium?
2 - When will Halley's Comet next fly by Earth?
3 - Who originally sang, "Somewhere over the Rainbow"?
4 - Name the deepest point in the Earth's Oceans
5 - What is a Volcanic Mudflow called?
6 - What is the Australian Bird Emblem?
7 - What is the name of Mickey Mouse's Dog?
8 - What decade was the Korean War?