Want to play a general knowledge quiz?

Yesterday 20 of us tested our general knowledge with 5 quizzes.
I awarded 20,000 points to the 5 winners.
I will have 2 quizzes within the next hour and a half.
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.
One answer for each question, eg; not Balloon or Sphere.
Only one definitive answer, Balloon.
After 30 minutes, the person with the most correct wins. In the event of a tie, the quickest to reply wins.

1 - What is the Botanical name of first two leaves of a seedling called ?
2 - What is the name of the plastic tube on both ends of a shoelace called ?
3 - Name Selena Gomez's 3 rd Album
4 - In 1890, which bridge, the longest in Gt Britain, was opened by the Prince of Wales?
5 - In what country did espresso originate?
6 - What is the heaviest [b]internal[/b]human organ?
7 - What comes in Pillbox, Panama, and Fez varieties?
8 - What is the westernmost major city in Australia?